631313383 has 8 divisors (see below), whose sum is σ = 655941600. Its totient is φ = 606875808.

The previous prime is 631313381. The next prime is 631313387. The reversal of 631313383 is 383313136.

631313383 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 631313383 - 2¹ = 631313381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631313381) 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, 40891 + ... + 54172.

It is an arithmetic number, because the mean of its divisors is an integer number (81992700).

Almost surely, 2^631313383 is an apocalyptic number.

631313383 is a deficient number, since it is larger than the sum of its proper divisors (24628217).

631313383 is a wasteful number, since it uses less digits than its factorization.

631313383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95321.

The product of its digits is 11664, while the sum is 31.

The square root of 631313383 is about 25125.9503899853. The cubic root of 631313383 is about 857.8571960013.

The spelling of 631313383 in words is "six hundred thirty-one million, three hundred thirteen thousand, three hundred eighty-three".