31252603125642 has 32 divisors (see below), whose sum is σ = 65795823244800. Its totient is φ = 9869112697968.

The previous prime is 31252603125607. The next prime is 31252603125643. The reversal of 31252603125642 is 24652130625213.

It is a junction number, because it is equal to n+sod(n) for n = 31252603125594 and 31252603125603.

It is not an unprimeable number, because it can be changed into a prime (31252603125643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7044283 + ... + 10589009.

It is an arithmetic number, because the mean of its divisors is an integer number (2056119476400).

Almost surely, 2^{31252603125642} is an apocalyptic number.

31252603125642 is an abundant number, since it is smaller than the sum of its proper divisors (34543220119158).

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

31252603125642 is a wasteful number, since it uses less digits than its factorization.

31252603125642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3622090.

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 31252603125642 in words is "thirty-one trillion, two hundred fifty-two billion, six hundred three million, one hundred twenty-five thousand, six hundred forty-two".