631113613000 has 64 divisors (see below), whose sum is σ = 1590406337520. Its totient is φ = 233026560000.

The previous prime is 631113612989. The next prime is 631113613003. The reversal of 631113613000 is 316311136.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 23097312484 + 608016300516 = 151978^2 + 779754^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (631113613003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24260601 + ... + 24286600.

Almost surely, 2^631113613000 is an apocalyptic number.

It is an amenable number.

631113613000 is an abundant number, since it is smaller than the sum of its proper divisors (959292724520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

631113613000 is a wasteful number, since it uses less digits than its factorization.

631113613000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48547235 (or 48547221 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 25.

Adding to 631113613000 its reverse (316311136), we get a palindrome (631429924136).

The spelling of 631113613000 in words is "six hundred thirty-one billion, one hundred thirteen million, six hundred thirteen thousand".