131423131104423 has 16 divisors (see below), whose sum is σ = 179624432977920. Its totient is φ = 85432484894816.

The previous prime is 131423131104409. The next prime is 131423131104443. The reversal of 131423131104423 is 324401131324131.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131423131104423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131423131104443) 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, 1732450815 + ... + 1732526672.

It is an arithmetic number, because the mean of its divisors is an integer number (11226527061120).

Almost surely, 2^{131423131104423} is an apocalyptic number.

131423131104423 is a deficient number, since it is larger than the sum of its proper divisors (48201301873497).

131423131104423 is a wasteful number, since it uses less digits than its factorization.

131423131104423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3464977806.

The product of its (nonzero) digits is 20736, while the sum is 33.

Adding to 131423131104423 its reverse (324401131324131), we get a palindrome (455824262428554).

The spelling of 131423131104423 in words is "one hundred thirty-one trillion, four hundred twenty-three billion, one hundred thirty-one million, one hundred four thousand, four hundred twenty-three".