20200031313 has 48 divisors (see below), whose sum is σ = 35665007616. Its totient is φ = 10037264160.

The previous prime is 20200031311. The next prime is 20200031387. The reversal of 20200031313 is 31313000202.

It is not a de Polignac number, because 20200031313 - 2¹ = 20200031311 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20200031292 and 20200031301.

It is not an unprimeable number, because it can be changed into a prime (20200031311) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 234381 + ... + 308762.

It is an arithmetic number, because the mean of its divisors is an integer number (743020992).

Almost surely, 2^20200031313 is an apocalyptic number.

20200031313 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20200031313 is a deficient number, since it is larger than the sum of its proper divisors (15464976303).

20200031313 is a wasteful number, since it uses less digits than its factorization.

20200031313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543194 (or 543187 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 20200031313 its reverse (31313000202), we get a palindrome (51513031515).

The spelling of 20200031313 in words is "twenty billion, two hundred million, thirty-one thousand, three hundred thirteen".