31353231368 has 64 divisors (see below), whose sum is σ = 63082281600. Its totient is φ = 14565519360.

The previous prime is 31353231367. The next prime is 31353231383. The reversal of 31353231368 is 86313235313.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (31353231367) 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, 2075330 + ... + 2090382.

It is an arithmetic number, because the mean of its divisors is an integer number (985660650).

Almost surely, 2^31353231368 is an apocalyptic number.

31353231368 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

31353231368 is an abundant number, since it is smaller than the sum of its proper divisors (31729050232).

31353231368 is a wasteful number, since it uses less digits than its factorization.

31353231368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15342 (or 15338 counting only the distinct ones).

The product of its digits is 116640, while the sum is 38.

The spelling of 31353231368 in words is "thirty-one billion, three hundred fifty-three million, two hundred thirty-one thousand, three hundred sixty-eight".