131331020211111 has 16 divisors (see below), whose sum is σ = 200884385078784. Its totient is φ = 74760950122464.

The previous prime is 131331020211107. The next prime is 131331020211197. The reversal of 131331020211111 is 111112020133131.

It is not a de Polignac number, because 131331020211111 - 2² = 131331020211107 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131331020211211) 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, 11889458556 + ... + 11889469601.

It is an arithmetic number, because the mean of its divisors is an integer number (12555274067424).

Almost surely, 2^{131331020211111} is an apocalyptic number.

131331020211111 is a deficient number, since it is larger than the sum of its proper divisors (69553364867673).

131331020211111 is a wasteful number, since it uses less digits than its factorization.

131331020211111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23778928430.

The product of its (nonzero) digits is 108, while the sum is 21.

Adding to 131331020211111 its reverse (111112020133131), we get a palindrome (242443040344242).

The spelling of 131331020211111 in words is "one hundred thirty-one trillion, three hundred thirty-one billion, twenty million, two hundred eleven thousand, one hundred eleven".