31455020140115 has 32 divisors (see below), whose sum is σ = 44346087878400. Its totient is φ = 21116129051520.

The previous prime is 31455020140087. The next prime is 31455020140121. The reversal of 31455020140115 is 51104102055413.

It is not a de Polignac number, because 31455020140115 - 2⁴⁰ = 30355508512339 is a prime.

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 31 ways as a sum of consecutive naturals, for example, 29199956 + ... + 30258014.

It is an arithmetic number, because the mean of its divisors is an integer number (1385815246200).

Almost surely, 2^{31455020140115} is an apocalyptic number.

31455020140115 is a deficient number, since it is larger than the sum of its proper divisors (12891067738285).

31455020140115 is a wasteful number, since it uses less digits than its factorization.

31455020140115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1099667.

The product of its (nonzero) digits is 12000, while the sum is 32.

Adding to 31455020140115 its reverse (51104102055413), we get a palindrome (82559122195528).

The spelling of 31455020140115 in words is "thirty-one trillion, four hundred fifty-five billion, twenty million, one hundred forty thousand, one hundred fifteen".