112412513561 has 4 divisors (see below), whose sum is σ = 112458082512. Its totient is φ = 112366944612.

The previous prime is 112412513557. The next prime is 112412513567. The reversal of 112412513561 is 165315214211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 165315214211 = 7 ⋅23616459173.

It is a cyclic number.

It is not a de Polignac number, because 112412513561 - 2² = 112412513557 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112412513567) 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, 22780775 + ... + 22785708.

It is an arithmetic number, because the mean of its divisors is an integer number (28114520628).

Almost surely, 2^112412513561 is an apocalyptic number.

It is an amenable number.

112412513561 is a deficient number, since it is larger than the sum of its proper divisors (45568951).

112412513561 is an equidigital number, since it uses as much as digits as its factorization.

112412513561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45568950.

The product of its digits is 7200, while the sum is 32.

Adding to 112412513561 its reverse (165315214211), we get a palindrome (277727727772).

The spelling of 112412513561 in words is "one hundred twelve billion, four hundred twelve million, five hundred thirteen thousand, five hundred sixty-one".