131211133232331 has 16 divisors (see below), whose sum is σ = 185260971377664. Its totient is φ = 82318898868864.

The previous prime is 131211133232323. The next prime is 131211133232383. The reversal of 131211133232331 is 133232331112131.

It is not a de Polignac number, because 131211133232331 - 2³ = 131211133232323 is a prime.

It is a super-2 number, since 2×131211133232331² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131211133232321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150425175 + ... + 151294928.

It is an arithmetic number, because the mean of its divisors is an integer number (11578810711104).

Almost surely, 2^{131211133232331} is an apocalyptic number.

131211133232331 is a deficient number, since it is larger than the sum of its proper divisors (54049838145333).

131211133232331 is a wasteful number, since it uses less digits than its factorization.

131211133232331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301728650.

The product of its digits is 5832, while the sum is 30.

Adding to 131211133232331 its reverse (133232331112131), we get a palindrome (264443464344462).

The spelling of 131211133232331 in words is "one hundred thirty-one trillion, two hundred eleven billion, one hundred thirty-three million, two hundred thirty-two thousand, three hundred thirty-one".