2112456562431 has 32 divisors (see below), whose sum is σ = 3114573880320. Its totient is φ = 1268900371200.

The previous prime is 2112456562423. The next prime is 2112456562439. The reversal of 2112456562431 is 1342656542112.

It is an interprime number because it is at equal distance from previous prime (2112456562423) and next prime (2112456562439).

It is not a de Polignac number, because 2112456562431 - 2³ = 2112456562423 is a prime.

It is a super-2 number, since 2×2112456562431² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112456562439) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12792355 + ... + 12956436.

It is an arithmetic number, because the mean of its divisors is an integer number (97330433760).

Almost surely, 2^{2112456562431} is an apocalyptic number.

2112456562431 is a deficient number, since it is larger than the sum of its proper divisors (1002117317889).

2112456562431 is a wasteful number, since it uses less digits than its factorization.

2112456562431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25748887.

The product of its digits is 345600, while the sum is 42.

The spelling of 2112456562431 in words is "two trillion, one hundred twelve billion, four hundred fifty-six million, five hundred sixty-two thousand, four hundred thirty-one".