131211232400441 has 4 divisors (see below), whose sum is σ = 133686916030692. Its totient is φ = 128735548770192.

The previous prime is 131211232400411. The next prime is 131211232400453. The reversal of 131211232400441 is 144004232112131.

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

It can be written as a sum of positive squares in 2 ways, for example, as 92574801696400 + 38636430704041 = 9621580^2 + 6215821^2 .

It is a cyclic number.

It is not a de Polignac number, because 131211232400441 - 2⁶ = 131211232400377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131211232400401) 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, 1237841815046 + ... + 1237841815151.

It is an arithmetic number, because the mean of its divisors is an integer number (33421729007673).

Almost surely, 2^{131211232400441} is an apocalyptic number.

It is an amenable number.

131211232400441 is a deficient number, since it is larger than the sum of its proper divisors (2475683630251).

131211232400441 is an equidigital number, since it uses as much as digits as its factorization.

131211232400441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2475683630250.

The product of its (nonzero) digits is 4608, while the sum is 29.

Adding to 131211232400441 its reverse (144004232112131), we get a palindrome (275215464512572).

The spelling of 131211232400441 in words is "one hundred thirty-one trillion, two hundred eleven billion, two hundred thirty-two million, four hundred thousand, four hundred forty-one".