31421155055524 has 12 divisors (see below), whose sum is σ = 59216792220124. Its totient is φ = 14502071564064.

The previous prime is 31421155055453. The next prime is 31421155055533. The reversal of 31421155055524 is 42555055112413.

It can be written as a sum of positive squares in 2 ways, for example, as 18725958022500 + 12695197033024 = 4327350^2 + 3563032^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 302126490867 + ... + 302126490970.

Almost surely, 2^{31421155055524} is an apocalyptic number.

It is an amenable number.

31421155055524 is a deficient number, since it is larger than the sum of its proper divisors (27795637164600).

31421155055524 is a wasteful number, since it uses less digits than its factorization.

31421155055524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604252981854 (or 604252981852 counting only the distinct ones).

The product of its (nonzero) digits is 600000, while the sum is 43.

The spelling of 31421155055524 in words is "thirty-one trillion, four hundred twenty-one billion, one hundred fifty-five million, fifty-five thousand, five hundred twenty-four".