31325071293 has 24 divisors (see below), whose sum is σ = 46148921208. Its totient is φ = 20468078592.

The previous prime is 31325071291. The next prime is 31325071339. The reversal of 31325071293 is 39217052313.

It is a happy number.

31325071293 is a `hidden beast` number, since 3 + 132 + 507 + 12 + 9 + 3 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 22332911364 + 8992159929 = 149442^2 + 94827^2 .

It is not a de Polignac number, because 31325071293 - 2¹ = 31325071291 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31325071291) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 432421 + ... + 499637.

It is an arithmetic number, because the mean of its divisors is an integer number (1922871717).

Almost surely, 2^31325071293 is an apocalyptic number.

It is an amenable number.

31325071293 is a deficient number, since it is larger than the sum of its proper divisors (14823849915).

31325071293 is a wasteful number, since it uses less digits than its factorization.

31325071293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68253 (or 68250 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 36.

The spelling of 31325071293 in words is "thirty-one billion, three hundred twenty-five million, seventy-one thousand, two hundred ninety-three".