2131031302311 has 8 divisors (see below), whose sum is σ = 2918168990704. Its totient is φ = 1382290574400.

The previous prime is 2131031302303. The next prime is 2131031302339. The reversal of 2131031302311 is 1132031301312.

It is a happy number.

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

It is not a de Polignac number, because 2131031302311 - 2³ = 2131031302303 is a prime.

It is a super-2 number, since 2×2131031302311² (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 (2131031300311) 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, 9599239990 + ... + 9599240211.

It is an arithmetic number, because the mean of its divisors is an integer number (364771123838).

Almost surely, 2^{2131031302311} is an apocalyptic number.

2131031302311 is a deficient number, since it is larger than the sum of its proper divisors (787137688393).

2131031302311 is a wasteful number, since it uses less digits than its factorization.

2131031302311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19198480241.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 2131031302311 its reverse (1132031301312), we get a palindrome (3263062603623).

Subtracting from 2131031302311 its reverse (1132031301312), we obtain a palindrome (999000000999).

It can be divided in two parts, 2131031 and 302311, that added together give a palindrome (2433342).

The spelling of 2131031302311 in words is "two trillion, one hundred thirty-one billion, thirty-one million, three hundred two thousand, three hundred eleven".