1031313000 has 64 divisors (see below), whose sum is σ = 3217705920. Its totient is φ = 275016000.

The previous prime is 1031312981. The next prime is 1031313001. The reversal of 1031313000 is 3131301.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (1031313001) 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, 168886 + ... + 174885.

It is an arithmetic number, because the mean of its divisors is an integer number (50276655).

Almost surely, 2^1031313000 is an apocalyptic number.

1031313000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1031313000 is an abundant number, since it is smaller than the sum of its proper divisors (2186392920).

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

1031313000 is a wasteful number, since it uses less digits than its factorization.

1031313000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343795 (or 343781 counting only the distinct ones).

The product of its (nonzero) digits is 27, while the sum is 12.

The square root of 1031313000 is about 32114.0623403518. The cubic root of 1031313000 is about 1010.3305783222.

Adding to 1031313000 its reverse (3131301), we get a palindrome (1034444301).

The spelling of 1031313000 in words is "one billion, thirty-one million, three hundred thirteen thousand".