31697111039 has 8 divisors (see below), whose sum is σ = 34798914768. Its totient is φ = 28632015360.

The previous prime is 31697110969. The next prime is 31697111071. The reversal of 31697111039 is 93011179613.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31697111039 - 2¹⁶ = 31697045503 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31697110987 and 31697111005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31697111239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9175202 + ... + 9178655.

It is an arithmetic number, because the mean of its divisors is an integer number (4349864346).

Almost surely, 2^31697111039 is an apocalyptic number.

31697111039 is a deficient number, since it is larger than the sum of its proper divisors (3101803729).

31697111039 is a wasteful number, since it uses less digits than its factorization.

31697111039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18354025.

The product of its (nonzero) digits is 30618, while the sum is 41.

The spelling of 31697111039 in words is "thirty-one billion, six hundred ninety-seven million, one hundred eleven thousand, thirty-nine".