31130331323 has 8 divisors (see below), whose sum is σ = 38314254048. Its totient is φ = 24630591744.

The previous prime is 31130331319. The next prime is 31130331373. The reversal of 31130331323 is 32313303113.

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

It is a cyclic number.

It is not a de Polignac number, because 31130331323 - 2² = 31130331319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31130331373) 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, 171045686 + ... + 171045867.

It is an arithmetic number, because the mean of its divisors is an integer number (4789281756).

Almost surely, 2^31130331323 is an apocalyptic number.

31130331323 is a deficient number, since it is larger than the sum of its proper divisors (7183922725).

31130331323 is a wasteful number, since it uses less digits than its factorization.

31130331323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342091573.

The product of its (nonzero) digits is 1458, while the sum is 23.

Adding to 31130331323 its reverse (32313303113), we get a palindrome (63443634436).

The spelling of 31130331323 in words is "thirty-one billion, one hundred thirty million, three hundred thirty-one thousand, three hundred twenty-three".