2131000311 has 32 divisors (see below), whose sum is σ = 3195254016. Its totient is φ = 1251936000.

The previous prime is 2131000307. The next prime is 2131000331. The reversal of 2131000311 is 1130001312.

It is not a de Polignac number, because 2131000311 - 2² = 2131000307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131000331) 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, 339996 + ... + 346206.

It is an arithmetic number, because the mean of its divisors is an integer number (99851688).

Almost surely, 2^2131000311 is an apocalyptic number.

2131000311 is a deficient number, since it is larger than the sum of its proper divisors (1064253705).

2131000311 is a wasteful number, since it uses less digits than its factorization.

2131000311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6543.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 2131000311 is about 46162.7589188515. The cubic root of 2131000311 is about 1286.8497357422.

Adding to 2131000311 its reverse (1130001312), we get a palindrome (3261001623).

The spelling of 2131000311 in words is "two billion, one hundred thirty-one million, three hundred eleven", and thus it is an aban number.