131120304340405 has 32 divisors (see below), whose sum is σ = 166282058563200. Its totient is φ = 98982234876672.

The previous prime is 131120304340391. The next prime is 131120304340409. The reversal of 131120304340405 is 504043403021131.

It is a cyclic number.

It is not a de Polignac number, because 131120304340405 - 2²⁷ = 131120170122677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131120304340409) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24850419 + ... + 29661151.

It is an arithmetic number, because the mean of its divisors is an integer number (5196314330100).

Almost surely, 2^{131120304340405} is an apocalyptic number.

It is an amenable number.

131120304340405 is a deficient number, since it is larger than the sum of its proper divisors (35161754222795).

131120304340405 is a wasteful number, since it uses less digits than its factorization.

131120304340405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4811893.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 131120304340405 its reverse (504043403021131), we get a palindrome (635163707361536).

The spelling of 131120304340405 in words is "one hundred thirty-one trillion, one hundred twenty billion, three hundred four million, three hundred forty thousand, four hundred five".