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122112313310131 = 229533241542839
BaseRepresentation
bin11011110000111101111101…
…000011101011101110110011
3121000100211020001221012012121
4123300331331003223232303
5112001142004201411011
61111413342225535111
734502215650111124
oct3360757503535663
9530324201835177
10122112313310131
11359aa5a5447261
12118422267a4497
13531a1ac5134b1
1422223a603804b
15e1b64c87ae71
hex6f0f7d0ebbb3

122112313310131 has 4 divisors (see below), whose sum is σ = 122645554853200. Its totient is φ = 121579071767064.

The previous prime is 122112313310087. The next prime is 122112313310147. The reversal of 122112313310131 is 131013313211221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122112313310131 - 237 = 121974874356659 is a prime.

It is a super-2 number, since 2×1221123133101312 (a number of 29 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 = 122112313310096 and 122112313310105.

It is not an unprimeable number, because it can be changed into a prime (122112313310161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 266620771191 + ... + 266620771648.

It is an arithmetic number, because the mean of its divisors is an integer number (30661388713300).

Almost surely, 2122112313310131 is an apocalyptic number.

122112313310131 is a deficient number, since it is larger than the sum of its proper divisors (533241543069).

122112313310131 is an equidigital number, since it uses as much as digits as its factorization.

122112313310131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533241543068.

The product of its (nonzero) digits is 648, while the sum is 25.

Adding to 122112313310131 its reverse (131013313211221), we get a palindrome (253125626521352).

The spelling of 122112313310131 in words is "one hundred twenty-two trillion, one hundred twelve billion, three hundred thirteen million, three hundred ten thousand, one hundred thirty-one".

Divisors: 1 229 533241542839 122112313310131