31285492424 has 32 divisors (see below), whose sum is σ = 59102480640. Its totient is φ = 15525259200.

The previous prime is 31285492391. The next prime is 31285492457. The reversal of 31285492424 is 42429458213.

It is an interprime number because it is at equal distance from previous prime (31285492391) and next prime (31285492457).

It is a super-2 number, since 2×31285492424² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 564014 + ... + 616994.

It is an arithmetic number, because the mean of its divisors is an integer number (1846952520).

Almost surely, 2^31285492424 is an apocalyptic number.

It is an amenable number.

31285492424 is a deficient number, since it is larger than the sum of its proper divisors (27816988216).

31285492424 is a wasteful number, since it uses less digits than its factorization.

31285492424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53541 (or 53537 counting only the distinct ones).

The product of its digits is 552960, while the sum is 44.

The spelling of 31285492424 in words is "thirty-one billion, two hundred eighty-five million, four hundred ninety-two thousand, four hundred twenty-four".