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3111313022231 = 2931263129110193
BaseRepresentation
bin101101010001101000101…
…101010001110100010111
3102000102211202100200201012
4231101220231101310113
5401433432113202411
610341152323522435
7440533144222511
oct55215055216427
912012752320635
103111313022231
11a9a5560a8927
12422bb052941b
1319751b07412b
14aa83462abb1
1555debc5018b
hex2d468b51d17

3111313022231 has 32 divisors (see below), whose sum is σ = 3337969029120. Its totient is φ = 2893541414400.

The previous prime is 3111313022189. The next prime is 3111313022243. The reversal of 3111313022231 is 1322203131113.

3111313022231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 3111313022231 - 222 = 3111308827927 is a prime.

It is a super-2 number, since 2×31113130222312 (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3111313022197 and 3111313022206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3111313022431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 305235071 + ... + 305245263.

It is an arithmetic number, because the mean of its divisors is an integer number (104311532160).

Almost surely, 23111313022231 is an apocalyptic number.

3111313022231 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

3111313022231 is a deficient number, since it is larger than the sum of its proper divisors (226656006889).

3111313022231 is a wasteful number, since it uses less digits than its factorization.

3111313022231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11807.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 3111313022231 its reverse (1322203131113), we get a palindrome (4433516153344).

The spelling of 3111313022231 in words is "three trillion, one hundred eleven billion, three hundred thirteen million, twenty-two thousand, two hundred thirty-one".

Divisors: 1 29 31 263 899 1291 7627 8153 10193 37439 40021 236437 295597 315983 339533 1160609 2680759 9163507 9846457 10525523 13159163 77742011 83103529 305240167 381615727 407934053 2410002341 3460859869 11830087537 100364936201 107286655939 3111313022231