31031004101012 has 12 divisors (see below), whose sum is σ = 54312253728096. Its totient is φ = 15513217321560.

The previous prime is 31031004100963. The next prime is 31031004101029. The reversal of 31031004101012 is 21010140013013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 571151678 + ... + 571206005.

It is an arithmetic number, because the mean of its divisors is an integer number (4526021144008).

Almost surely, 2^{31031004101012} is an apocalyptic number.

It is an amenable number.

31031004101012 is a deficient number, since it is larger than the sum of its proper divisors (23281249627084).

31031004101012 is a wasteful number, since it uses less digits than its factorization.

31031004101012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142364478 (or 1142364476 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 31031004101012 its reverse (21010140013013), we get a palindrome (52041144114025).

The spelling of 31031004101012 in words is "thirty-one trillion, thirty-one billion, four million, one hundred one thousand, twelve".