31447717323 has 32 divisors (see below), whose sum is σ = 48218976000. Its totient is φ = 18030096000.

The previous prime is 31447717313. The next prime is 31447717331. The reversal of 31447717323 is 32371774413.

It is not a de Polignac number, because 31447717323 - 2¹⁴ = 31447700939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31447717313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 403753 + ... + 475301.

It is an arithmetic number, because the mean of its divisors is an integer number (1506843000).

Almost surely, 2^31447717323 is an apocalyptic number.

31447717323 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

31447717323 is a deficient number, since it is larger than the sum of its proper divisors (16771258677).

31447717323 is a wasteful number, since it uses less digits than its factorization.

31447717323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72283.

The product of its digits is 296352, while the sum is 42.

The spelling of 31447717323 in words is "thirty-one billion, four hundred forty-seven million, seven hundred seventeen thousand, three hundred twenty-three".