20102001012231 has 8 divisors (see below), whose sum is σ = 26922859353600. Its totient is φ = 13341238339512.

The previous prime is 20102001012229. The next prime is 20102001012319. The reversal of 20102001012231 is 13221010020102.

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

It is not a de Polignac number, because 20102001012231 - 2¹ = 20102001012229 is a prime.

It is a super-2 number, since 2×20102001012231² (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 20102001012231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20102001012211) 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, 15023916381 + ... + 15023917718.

It is an arithmetic number, because the mean of its divisors is an integer number (3365357419200).

Almost surely, 2^{20102001012231} is an apocalyptic number.

20102001012231 is a deficient number, since it is larger than the sum of its proper divisors (6820858341369).

20102001012231 is a wasteful number, since it uses less digits than its factorization.

20102001012231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30047834325.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 20102001012231 its reverse (13221010020102), we get a palindrome (33323011032333).

The spelling of 20102001012231 in words is "twenty trillion, one hundred two billion, one million, twelve thousand, two hundred thirty-one".