31340532144 has 40 divisors (see below), whose sum is σ = 81218484720. Its totient is φ = 10413883648.

The previous prime is 31340532107. The next prime is 31340532149. The reversal of 31340532144 is 44123504313.

It is not an unprimeable number, because it can be changed into a prime (31340532149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1014639 + ... + 1045070.

It is an arithmetic number, because the mean of its divisors is an integer number (2030462118).

Almost surely, 2^31340532144 is an apocalyptic number.

It is an amenable number.

31340532144 is an abundant number, since it is smaller than the sum of its proper divisors (49877952576).

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

31340532144 is a wasteful number, since it uses less digits than its factorization.

31340532144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2060037 (or 2060031 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

The spelling of 31340532144 in words is "thirty-one billion, three hundred forty million, five hundred thirty-two thousand, one hundred forty-four".