3131222252311 has 8 divisors (see below), whose sum is σ = 3138538433184. Its totient is φ = 3123906462720.

The previous prime is 3131222252297. The next prime is 3131222252371. The reversal of 3131222252311 is 1132522221313.

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

It is a cyclic number.

It is not a de Polignac number, because 3131222252311 - 2³³ = 3122632317719 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3131222252311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3131222252371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21446046 + ... + 21591556.

It is an arithmetic number, because the mean of its divisors is an integer number (392317304148).

Almost surely, 2^{3131222252311} is an apocalyptic number.

3131222252311 is a deficient number, since it is larger than the sum of its proper divisors (7316180873).

3131222252311 is a wasteful number, since it uses less digits than its factorization.

3131222252311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195641.

The product of its digits is 4320, while the sum is 28.

Adding to 3131222252311 its reverse (1132522221313), we get a palindrome (4263744473624).

The spelling of 3131222252311 in words is "three trillion, one hundred thirty-one billion, two hundred twenty-two million, two hundred fifty-two thousand, three hundred eleven".