31631116238 has 8 divisors (see below), whose sum is σ = 48018321288. Its totient is φ = 15625009144.

The previous prime is 31631116219. The next prime is 31631116247. The reversal of 31631116238 is 83261113613.

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

It is a junction number, because it is equal to n+sod(n) for n = 31631116198 and 31631116207.

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, 95274281 + ... + 95274612.

It is an arithmetic number, because the mean of its divisors is an integer number (6002290161).

Almost surely, 2^31631116238 is an apocalyptic number.

31631116238 is a deficient number, since it is larger than the sum of its proper divisors (16387205050).

31631116238 is a wasteful number, since it uses less digits than its factorization.

31631116238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190548978.

The product of its digits is 15552, while the sum is 35.

The spelling of 31631116238 in words is "thirty-one billion, six hundred thirty-one million, one hundred sixteen thousand, two hundred thirty-eight".