20313204213031 has 16 divisors (see below), whose sum is σ = 20774260975104. Its totient is φ = 19857385223424.

The previous prime is 20313204212963. The next prime is 20313204213037. The reversal of 20313204213031 is 13031240231302.

It is a cyclic number.

It is not a de Polignac number, because 20313204213031 - 2⁹ = 20313204212519 is a prime.

It is a super-2 number, since 2×20313204213031² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20313204212987 and 20313204213005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20313204213037) 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, 38244180 + ... + 38771686.

It is an arithmetic number, because the mean of its divisors is an integer number (1298391310944).

Almost surely, 2^{20313204213031} is an apocalyptic number.

20313204213031 is a deficient number, since it is larger than the sum of its proper divisors (461056762073).

20313204213031 is an equidigital number, since it uses as much as digits as its factorization.

20313204213031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532470.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 20313204213031 its reverse (13031240231302), we get a palindrome (33344444444333).

The spelling of 20313204213031 in words is "twenty trillion, three hundred thirteen billion, two hundred four million, two hundred thirteen thousand, thirty-one".