12992407031 has 4 divisors (see below), whose sum is σ = 13013397000. Its totient is φ = 12971417064.

The previous prime is 12992407027. The next prime is 12992407037. The reversal of 12992407031 is 13070429921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13070429921 = 48781 ⋅267941.

It is a cyclic number.

It is not a de Polignac number, because 12992407031 - 2² = 12992407027 is a prime.

It is a super-2 number, since 2×12992407031² (a number of 21 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 (12992407037) 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, 10494056 + ... + 10495293.

It is an arithmetic number, because the mean of its divisors is an integer number (3253349250).

Almost surely, 2^12992407031 is an apocalyptic number.

12992407031 is a deficient number, since it is larger than the sum of its proper divisors (20989969).

12992407031 is an equidigital number, since it uses as much as digits as its factorization.

12992407031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20989968.

The product of its (nonzero) digits is 27216, while the sum is 38.

The spelling of 12992407031 in words is "twelve billion, nine hundred ninety-two million, four hundred seven thousand, thirty-one".