31040511155214 has 32 divisors (see below), whose sum is σ = 67724973434880. Its totient is φ = 9406184692800.

The previous prime is 31040511155209. The next prime is 31040511155237. The reversal of 31040511155214 is 41255111504013.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27133779 + ... + 28254609.

It is an arithmetic number, because the mean of its divisors is an integer number (2116405419840).

Almost surely, 2^{31040511155214} is an apocalyptic number.

31040511155214 is an abundant number, since it is smaller than the sum of its proper divisors (36684462279666).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31040511155214 is a wasteful number, since it uses less digits than its factorization.

31040511155214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1540456.

The product of its (nonzero) digits is 12000, while the sum is 33.

Adding to 31040511155214 its reverse (41255111504013), we get a palindrome (72295622659227).

The spelling of 31040511155214 in words is "thirty-one trillion, forty billion, five hundred eleven million, one hundred fifty-five thousand, two hundred fourteen".