20131313000 has 32 divisors (see below), whose sum is σ = 47107274760. Its totient is φ = 8052524800.

The previous prime is 20131312997. The next prime is 20131313047. The reversal of 20131313000 is 31313102.

It can be written as a sum of positive squares in 4 ways, for example, as 1766184676 + 18365128324 = 42026^2 + 135518^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10064657 + ... + 10066656.

Almost surely, 2^20131313000 is an apocalyptic number.

20131313000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20131313000 is an abundant number, since it is smaller than the sum of its proper divisors (26975961760).

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

20131313000 is a wasteful number, since it uses less digits than its factorization.

20131313000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20131334 (or 20131320 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 20131313000 its reverse (31313102), we get a palindrome (20162626102).

The spelling of 20131313000 in words is "twenty billion, one hundred thirty-one million, three hundred thirteen thousand".