131201431431011 has 16 divisors (see below), whose sum is σ = 139727077205760. Its totient is φ = 122846173279200.

The previous prime is 131201431431001. The next prime is 131201431431017. The reversal of 131201431431011 is 110134134102131.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 131201431431011 - 2⁶ = 131201431430947 is a prime.

It is a super-2 number, since 2×131201431431011² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131201431431017) 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, 115502621 + ... + 116633006.

It is an arithmetic number, because the mean of its divisors is an integer number (8732942325360).

Almost surely, 2^{131201431431011} is an apocalyptic number.

131201431431011 is a deficient number, since it is larger than the sum of its proper divisors (8525645774749).

131201431431011 is a wasteful number, since it uses less digits than its factorization.

131201431431011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232135994.

The product of its (nonzero) digits is 864, while the sum is 26.

Adding to 131201431431011 its reverse (110134134102131), we get a palindrome (241335565533142).

The spelling of 131201431431011 in words is "one hundred thirty-one trillion, two hundred one billion, four hundred thirty-one million, four hundred thirty-one thousand, eleven".