131020421311 has 16 divisors (see below), whose sum is σ = 148047157440. Its totient is φ = 115044399360.

The previous prime is 131020421297. The next prime is 131020421339. The reversal of 131020421311 is 113124020131.

It is a cyclic number.

It is not a de Polignac number, because 131020421311 - 2¹⁷ = 131020290239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131020421351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1156366 + ... + 1264603.

It is an arithmetic number, because the mean of its divisors is an integer number (9252947340).

Almost surely, 2^131020421311 is an apocalyptic number.

131020421311 is a deficient number, since it is larger than the sum of its proper divisors (17026736129).

131020421311 is a wasteful number, since it uses less digits than its factorization.

131020421311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2421186.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 131020421311 its reverse (113124020131), we get a palindrome (244144441442).

The spelling of 131020421311 in words is "one hundred thirty-one billion, twenty million, four hundred twenty-one thousand, three hundred eleven".