131143123404 has 36 divisors (see below), whose sum is σ = 331622840640. Its totient is φ = 43698264480.

The previous prime is 131143123399. The next prime is 131143123453. The reversal of 131143123404 is 404321341131.

131143123404 is a `hidden beast` number, since 1 + 3 + 1 + 1 + 4 + 312 + 340 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 572007 + ... + 767774.

Almost surely, 2^131143123404 is an apocalyptic number.

It is an amenable number.

131143123404 is an abundant number, since it is smaller than the sum of its proper divisors (200479717236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131143123404 is a wasteful number, since it uses less digits than its factorization.

131143123404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1342510 (or 1342505 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 131143123404 its reverse (404321341131), we get a palindrome (535464464535).

The spelling of 131143123404 in words is "one hundred thirty-one billion, one hundred forty-three million, one hundred twenty-three thousand, four hundred four".