20000020113231 has 8 divisors (see below), whose sum is σ = 26691091195440. Its totient is φ = 13321147886592.

The previous prime is 20000020113197. The next prime is 20000020113259. The reversal of 20000020113231 is 13231102000002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20000020113231 - 2¹⁸ = 20000019851087 is a prime.

It is a super-2 number, since 2×20000020113231² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20000020113231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000020123231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3049710066 + ... + 3049716623.

It is an arithmetic number, because the mean of its divisors is an integer number (3336386399430).

Almost surely, 2^{20000020113231} is an apocalyptic number.

20000020113231 is a deficient number, since it is larger than the sum of its proper divisors (6691071082209).

20000020113231 is a wasteful number, since it uses less digits than its factorization.

20000020113231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6099427785.

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

Adding to 20000020113231 its reverse (13231102000002), we get a palindrome (33231122113233).

The spelling of 20000020113231 in words is "twenty trillion, twenty million, one hundred thirteen thousand, two hundred thirty-one".