31141423997 has 4 divisors (see below), whose sum is σ = 31148375040. Its totient is φ = 31134472956.

The previous prime is 31141423987. The next prime is 31141424029. The reversal of 31141423997 is 79932414113.

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 31141423997 - 2⁸ = 31141423741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31141423927) 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, 3468797 + ... + 3477762.

It is an arithmetic number, because the mean of its divisors is an integer number (7787093760).

Almost surely, 2^31141423997 is an apocalyptic number.

It is an amenable number.

31141423997 is a deficient number, since it is larger than the sum of its proper divisors (6951043).

31141423997 is an equidigital number, since it uses as much as digits as its factorization.

31141423997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6951042.

The product of its digits is 163296, while the sum is 44.

The spelling of 31141423997 in words is "thirty-one billion, one hundred forty-one million, four hundred twenty-three thousand, nine hundred ninety-seven".