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11213200031 = 112294451449
BaseRepresentation
bin10100111000101101…
…11101101010011111
31001221110121120200212
422130112331222133
5140431034400111
65052401443035
7544605425165
oct123426755237
931843546625
1011213200031
114834617170
12220b34047b
131099153c07
1478532b235
1545965498b
hex29c5bda9f

11213200031 has 8 divisors (see below), whose sum is σ = 12286002000. Its totient is φ = 10149301440.

The previous prime is 11213199989. The next prime is 11213200049. The reversal of 11213200031 is 13000231211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11213200031 - 226 = 11146091167 is a prime.

It is a super-2 number, since 2×112132000312 (a number of 21 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 = 11213199979 and 11213200015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11213200231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2223206 + ... + 2228243.

It is an arithmetic number, because the mean of its divisors is an integer number (1535750250).

Almost surely, 211213200031 is an apocalyptic number.

11213200031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11213200031 is a deficient number, since it is larger than the sum of its proper divisors (1072801969).

11213200031 is a wasteful number, since it uses less digits than its factorization.

11213200031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4451689.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 11213200031 its reverse (13000231211), we get a palindrome (24213431242).

The spelling of 11213200031 in words is "eleven billion, two hundred thirteen million, two hundred thousand, thirty-one".

Divisors: 1 11 229 2519 4451449 48965939 1019381821 11213200031