131011120404331 has 4 divisors (see below), whose sum is σ = 132235523398872. Its totient is φ = 129786717409792.

The previous prime is 131011120404289. The next prime is 131011120404499. The reversal of 131011120404331 is 133404021110131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131011120404331 - 2²⁷ = 131010986186603 is a prime.

It is a super-2 number, since 2×131011120404331² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131011120404296 and 131011120404305.

It is not an unprimeable number, because it can be changed into a prime (131011120401331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 612201497110 + ... + 612201497323.

It is an arithmetic number, because the mean of its divisors is an integer number (33058880849718).

Almost surely, 2^{131011120404331} is an apocalyptic number.

131011120404331 is a deficient number, since it is larger than the sum of its proper divisors (1224402994541).

131011120404331 is a wasteful number, since it uses less digits than its factorization.

131011120404331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1224402994540.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 131011120404331 its reverse (133404021110131), we get a palindrome (264415141514462).

The spelling of 131011120404331 in words is "one hundred thirty-one trillion, eleven billion, one hundred twenty million, four hundred four thousand, three hundred thirty-one".