20100031022013 has 4 divisors (see below), whose sum is σ = 26800041362688. Its totient is φ = 13400020681340.

The previous prime is 20100031021991. The next prime is 20100031022021. The reversal of 20100031022013 is 31022013000102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20100031022013 - 2²¹ = 20100028924861 is a prime.

It is a super-2 number, since 2×20100031022013² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20100031021983 and 20100031022001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20100031022033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3350005170333 + ... + 3350005170338.

It is an arithmetic number, because the mean of its divisors is an integer number (6700010340672).

Almost surely, 2^{20100031022013} is an apocalyptic number.

It is an amenable number.

20100031022013 is a deficient number, since it is larger than the sum of its proper divisors (6700010340675).

20100031022013 is an equidigital number, since it uses as much as digits as its factorization.

20100031022013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6700010340674.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20100031022013 its reverse (31022013000102), we get a palindrome (51122044022115).

The spelling of 20100031022013 in words is "twenty trillion, one hundred billion, thirty-one million, twenty-two thousand, thirteen".