20313404031020 has 48 divisors (see below), whose sum is σ = 42707005094880. Its totient is φ = 8116057238016.

The previous prime is 20313404030981. The next prime is 20313404031023. The reversal of 20313404031020 is 2013040431302.

It is not an unprimeable number, because it can be changed into a prime (20313404031023) 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, 224653139 + ... + 224743541.

It is an arithmetic number, because the mean of its divisors is an integer number (889729272810).

Almost surely, 2^{20313404031020} is an apocalyptic number.

20313404031020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20313404031020 is an abundant number, since it is smaller than the sum of its proper divisors (22393601063860).

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

20313404031020 is a wasteful number, since it uses less digits than its factorization.

20313404031020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103154 (or 103152 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 20313404031020 its reverse (2013040431302), we get a palindrome (22326444462322).

The spelling of 20313404031020 in words is "twenty trillion, three hundred thirteen billion, four hundred four million, thirty-one thousand, twenty".