631119993 has 16 divisors (see below), whose sum is σ = 962058240. Its totient is φ = 360508176.

The previous prime is 631119971. The next prime is 631119997. The reversal of 631119993 is 399911136.

It is not a de Polignac number, because 631119993 - 2⁵ = 631119961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (631119997) 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, 105168 + ... + 111006.

It is an arithmetic number, because the mean of its divisors is an integer number (60128640).

Almost surely, 2^631119993 is an apocalyptic number.

It is an amenable number.

631119993 is a deficient number, since it is larger than the sum of its proper divisors (330938247).

631119993 is a wasteful number, since it uses less digits than its factorization.

631119993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10996.

The product of its digits is 39366, while the sum is 42.

The square root of 631119993 is about 25122.1016835774. The cubic root of 631119993 is about 857.7695913607.

The spelling of 631119993 in words is "six hundred thirty-one million, one hundred nineteen thousand, nine hundred ninety-three".