97313535431 has 6 divisors (see below), whose sum is σ = 113201459640. Its totient is φ = 83411601756.

The previous prime is 97313535413. The next prime is 97313535433. The reversal of 97313535431 is 13453531379.

It is not a de Polignac number, because 97313535431 - 2¹⁴ = 97313519047 is a prime.

It is a super-2 number, since 2×97313535431² (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 (97313535433) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 992995211 + ... + 992995308.

It is an arithmetic number, because the mean of its divisors is an integer number (18866909940).

Almost surely, 2^97313535431 is an apocalyptic number.

97313535431 is a deficient number, since it is larger than the sum of its proper divisors (15887924209).

97313535431 is a wasteful number, since it uses less digits than its factorization.

97313535431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1985990533 (or 1985990526 counting only the distinct ones).

The product of its digits is 510300, while the sum is 44.

The spelling of 97313535431 in words is "ninety-seven billion, three hundred thirteen million, five hundred thirty-five thousand, four hundred thirty-one".