113123312312201 has 12 divisors (see below), whose sum is σ = 120171455808828. Its totient is φ = 106466872676352.

The previous prime is 113123312312191. The next prime is 113123312312221. The reversal of 113123312312201 is 102213213321311.

It can be written as a sum of positive squares in 6 ways, for example, as 44254492284025 + 68868820028176 = 6652405^2 + 8298724^2 .

It is a de Polignac number, because none of the positive numbers 2^k-113123312312201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113123312312221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10673945 + ... + 18443961.

It is an arithmetic number, because the mean of its divisors is an integer number (10014287984069).

Almost surely, 2^{113123312312201} is an apocalyptic number.

It is an amenable number.

113123312312201 is a deficient number, since it is larger than the sum of its proper divisors (7048143496627).

113123312312201 is an equidigital number, since it uses as much as digits as its factorization.

113123312312201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7820428 (or 7820411 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

Adding to 113123312312201 its reverse (102213213321311), we get a palindrome (215336525633512).

The spelling of 113123312312201 in words is "one hundred thirteen trillion, one hundred twenty-three billion, three hundred twelve million, three hundred twelve thousand, two hundred one".