31087972220253 has 16 divisors (see below), whose sum is σ = 44656638423936. Its totient is φ = 19123560331200.

The previous prime is 31087972220243. The next prime is 31087972220353. The reversal of 31087972220253 is 35202227978013.

It is not a de Polignac number, because 31087972220253 - 2⁶ = 31087972220189 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 31087972220196 and 31087972220205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31087972220243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156138750 + ... + 156337727.

It is an arithmetic number, because the mean of its divisors is an integer number (2791039901496).

Almost surely, 2^{31087972220253} is an apocalyptic number.

It is an amenable number.

31087972220253 is a deficient number, since it is larger than the sum of its proper divisors (13568666203683).

31087972220253 is a wasteful number, since it uses less digits than its factorization.

31087972220253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312479044.

The product of its (nonzero) digits is 2540160, while the sum is 51.

The spelling of 31087972220253 in words is "thirty-one trillion, eighty-seven billion, nine hundred seventy-two million, two hundred twenty thousand, two hundred fifty-three".