631431552122 has 8 divisors (see below), whose sum is σ = 1082454089376. Its totient is φ = 270613522332.

The previous prime is 631431552049. The next prime is 631431552133. The reversal of 631431552122 is 221255134136.

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, 22551126848 + ... + 22551126875.

It is an arithmetic number, because the mean of its divisors is an integer number (135306761172).

Almost surely, 2^631431552122 is an apocalyptic number.

631431552122 is a deficient number, since it is larger than the sum of its proper divisors (451022537254).

631431552122 is a wasteful number, since it uses less digits than its factorization.

631431552122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45102253732.

The product of its digits is 43200, while the sum is 35.

Adding to 631431552122 its reverse (221255134136), we get a palindrome (852686686258).

The spelling of 631431552122 in words is "six hundred thirty-one billion, four hundred thirty-one million, five hundred fifty-two thousand, one hundred twenty-two".