2131020110231 has 4 divisors (see below), whose sum is σ = 2199762694464. Its totient is φ = 2062277526000.

The previous prime is 2131020110207. The next prime is 2131020110269. The reversal of 2131020110231 is 1320110201312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2131020110231 - 2²² = 2131015915927 is a prime.

It is a super-2 number, since 2×2131020110231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131020110201) 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, 34371292070 + ... + 34371292131.

It is an arithmetic number, because the mean of its divisors is an integer number (549940673616).

Almost surely, 2^{2131020110231} is an apocalyptic number.

2131020110231 is a deficient number, since it is larger than the sum of its proper divisors (68742584233).

2131020110231 is an equidigital number, since it uses as much as digits as its factorization.

2131020110231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68742584232.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 2131020110231 its reverse (1320110201312), we get a palindrome (3451130311543).

The spelling of 2131020110231 in words is "two trillion, one hundred thirty-one billion, twenty million, one hundred ten thousand, two hundred thirty-one".