2002020111231 has 32 divisors (see below), whose sum is σ = 3078751104000. Its totient is φ = 1133539038720.

The previous prime is 2002020111227. The next prime is 2002020111313. The reversal of 2002020111231 is 1321110202002.

It is not a de Polignac number, because 2002020111231 - 2² = 2002020111227 is a prime.

It is a super-2 number, since 2×2002020111231² (a number of 25 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 2002020111231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002020111031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13225 + ... + 2001053.

It is an arithmetic number, because the mean of its divisors is an integer number (96210972000).

Almost surely, 2^{2002020111231} is an apocalyptic number.

2002020111231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2002020111231 is a deficient number, since it is larger than the sum of its proper divisors (1076730992769).

2002020111231 is a wasteful number, since it uses less digits than its factorization.

2002020111231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1988279.

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

Adding to 2002020111231 its reverse (1321110202002), we get a palindrome (3323130313233).

The spelling of 2002020111231 in words is "two trillion, two billion, twenty million, one hundred eleven thousand, two hundred thirty-one".