31130133202 has 32 divisors (see below), whose sum is σ = 56545827840. Its totient is φ = 12547645440.

The previous prime is 31130133179. The next prime is 31130133283. The reversal of 31130133202 is 20233103113.

It is a self number, because there is not a number n which added to its sum of digits gives 31130133202.

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, 288927 + ... + 381757.

It is an arithmetic number, because the mean of its divisors is an integer number (1767057120).

Almost surely, 2^31130133202 is an apocalyptic number.

31130133202 is a deficient number, since it is larger than the sum of its proper divisors (25415694638).

31130133202 is a wasteful number, since it uses less digits than its factorization.

31130133202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94266.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 31130133202 its reverse (20233103113), we get a palindrome (51363236315).

The spelling of 31130133202 in words is "thirty-one billion, one hundred thirty million, one hundred thirty-three thousand, two hundred two".