31043521402 has 16 divisors (see below), whose sum is σ = 46656570240. Its totient is φ = 15491360368.

The previous prime is 31043521357. The next prime is 31043521423. The reversal of 31043521402 is 20412534013.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2555499 + ... + 2567617.

It is an arithmetic number, because the mean of its divisors is an integer number (2916035640).

Almost surely, 2^31043521402 is an apocalyptic number.

31043521402 is a deficient number, since it is larger than the sum of its proper divisors (15613048838).

31043521402 is a wasteful number, since it uses less digits than its factorization.

31043521402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14525.

The product of its (nonzero) digits is 2880, while the sum is 25.

The spelling of 31043521402 in words is "thirty-one billion, forty-three million, five hundred twenty-one thousand, four hundred two".