31130220331202 has 8 divisors (see below), whose sum is σ = 46703405100096. Its totient is φ = 15562418631172.

The previous prime is 31130220331193. The next prime is 31130220331253. The reversal of 31130220331202 is 20213302203113.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 1345752758 + ... + 1345775889.

It is an arithmetic number, because the mean of its divisors is an integer number (5837925637512).

Almost surely, 2^{31130220331202} is an apocalyptic number.

31130220331202 is a deficient number, since it is larger than the sum of its proper divisors (15573184768894).

31130220331202 is a wasteful number, since it uses less digits than its factorization.

31130220331202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2691534432.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 31130220331202 its reverse (20213302203113), we get a palindrome (51343522534315).

The spelling of 31130220331202 in words is "thirty-one trillion, one hundred thirty billion, two hundred twenty million, three hundred thirty-one thousand, two hundred two".