31400131434 has 32 divisors (see below), whose sum is σ = 71964182400. Its totient is φ = 8947409472.

The previous prime is 31400131423. The next prime is 31400131447. The reversal of 31400131434 is 43413100413.

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, 986509 + ... + 1017840.

It is an arithmetic number, because the mean of its divisors is an integer number (2248880700).

Almost surely, 2^31400131434 is an apocalyptic number.

31400131434 is an abundant number, since it is smaller than the sum of its proper divisors (40564050966).

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

31400131434 is a wasteful number, since it uses less digits than its factorization.

31400131434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2004734.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 31400131434 its reverse (43413100413), we get a palindrome (74813231847).

The spelling of 31400131434 in words is "thirty-one billion, four hundred million, one hundred thirty-one thousand, four hundred thirty-four".