131222113311 has 64 divisors (see below), whose sum is σ = 190539417600. Its totient is φ = 80151192576.

The previous prime is 131222113277. The next prime is 131222113327. The reversal of 131222113311 is 113311222131.

It is not a de Polignac number, because 131222113311 - 2²³ = 131213724703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131222113811) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 21103875 + ... + 21110091.

It is an arithmetic number, because the mean of its divisors is an integer number (2977178400).

Almost surely, 2^131222113311 is an apocalyptic number.

131222113311 is a deficient number, since it is larger than the sum of its proper divisors (59317304289).

131222113311 is a wasteful number, since it uses less digits than its factorization.

131222113311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6448.

The product of its digits is 216, while the sum is 21.

Adding to 131222113311 its reverse (113311222131), we get a palindrome (244533335442).

The spelling of 131222113311 in words is "one hundred thirty-one billion, two hundred twenty-two million, one hundred thirteen thousand, three hundred eleven".