31251042645441 has 32 divisors (see below), whose sum is σ = 41875737108480. Its totient is φ = 20730389119104.

The previous prime is 31251042645379. The next prime is 31251042645461. The reversal of 31251042645441 is 14454624015213.

It is not a de Polignac number, because 31251042645441 - 2⁶ = 31251042645377 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31251042645393 and 31251042645402.

It is not an unprimeable number, because it can be changed into a prime (31251042645461) 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 31 ways as a sum of consecutive naturals, for example, 3526007376 + ... + 3526016238.

It is an arithmetic number, because the mean of its divisors is an integer number (1308616784640).

Almost surely, 2^{31251042645441} is an apocalyptic number.

It is an amenable number.

31251042645441 is a deficient number, since it is larger than the sum of its proper divisors (10624694463039).

31251042645441 is a wasteful number, since it uses less digits than its factorization.

31251042645441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13885.

The product of its (nonzero) digits is 460800, while the sum is 42.

The spelling of 31251042645441 in words is "thirty-one trillion, two hundred fifty-one billion, forty-two million, six hundred forty-five thousand, four hundred forty-one".