31031100002 has 32 divisors (see below), whose sum is σ = 53387143680. Its totient is φ = 13251366720.

The previous prime is 31031099993. The next prime is 31031100007. The reversal of 31031100002 is 20000113013.

It is not an unprimeable number, because it can be changed into a prime (31031100007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8943524 + ... + 8946992.

It is an arithmetic number, because the mean of its divisors is an integer number (1668348240).

Almost surely, 2^31031100002 is an apocalyptic number.

31031100002 is a deficient number, since it is larger than the sum of its proper divisors (22356043678).

31031100002 is a wasteful number, since it uses less digits than its factorization.

31031100002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5586.

The product of its (nonzero) digits is 18, while the sum is 11.

Adding to 31031100002 its reverse (20000113013), we get a palindrome (51031213015).

The spelling of 31031100002 in words is "thirty-one billion, thirty-one million, one hundred thousand, two".