31061285292 has 48 divisors (see below), whose sum is σ = 73302963552. Its totient is φ = 10235904000.

The previous prime is 31061285279. The next prime is 31061285347. The reversal of 31061285292 is 29258216013.

It is a self number, because there is not a number n which added to its sum of digits gives 31061285292.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1095292 + ... + 1123292.

It is an arithmetic number, because the mean of its divisors is an integer number (1527145074).

Almost surely, 2^31061285292 is an apocalyptic number.

It is an amenable number.

31061285292 is an abundant number, since it is smaller than the sum of its proper divisors (42241678260).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31061285292 is a wasteful number, since it uses less digits than its factorization.

31061285292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29058 (or 29056 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The spelling of 31061285292 in words is "thirty-one billion, sixty-one million, two hundred eighty-five thousand, two hundred ninety-two".