122131040131191 has 96 divisors (see below), whose sum is σ = 219729755562240. Its totient is φ = 59610893884416.

The previous prime is 122131040131183. The next prime is 122131040131193. The reversal of 122131040131191 is 191131040131221.

It is a happy number.

It is not a de Polignac number, because 122131040131191 - 2³ = 122131040131183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122131040131193) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 37551010 + ... + 40673583.

It is an arithmetic number, because the mean of its divisors is an integer number (2288851620440).

Almost surely, 2^{122131040131191} is an apocalyptic number.

122131040131191 is a deficient number, since it is larger than the sum of its proper divisors (97598715431049).

122131040131191 is a wasteful number, since it uses less digits than its factorization.

122131040131191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78224685 (or 78224678 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 30.

Adding to 122131040131191 its sum of digits (30), we get a palindrome (122131040131221).

The spelling of 122131040131191 in words is "one hundred twenty-two trillion, one hundred thirty-one billion, forty million, one hundred thirty-one thousand, one hundred ninety-one".