112521545261 has 4 divisors (see below), whose sum is σ = 113613987552. Its totient is φ = 111429102972.

The previous prime is 112521545251. The next prime is 112521545291. The reversal of 112521545261 is 162545125211.

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.

It is a cyclic number.

It is not a de Polignac number, because 112521545261 - 2³⁴ = 95341676077 is a prime.

It is a super-2 number, since 2×112521545261² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112521545221) 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, 546220991 + ... + 546221196.

It is an arithmetic number, because the mean of its divisors is an integer number (28403496888).

Almost surely, 2^112521545261 is an apocalyptic number.

It is an amenable number.

112521545261 is a deficient number, since it is larger than the sum of its proper divisors (1092442291).

112521545261 is a wasteful number, since it uses less digits than its factorization.

112521545261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1092442290.

The product of its digits is 24000, while the sum is 35.

The spelling of 112521545261 in words is "one hundred twelve billion, five hundred twenty-one million, five hundred forty-five thousand, two hundred sixty-one".