131131333033 has 4 divisors (see below), whose sum is σ = 138032982160. Its totient is φ = 124229683908.

The previous prime is 131131332971. The next prime is 131131333037. The reversal of 131131333033 is 330333131131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131131333033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131131332989 and 131131333007.

It is not an unprimeable number, because it can be changed into a prime (131131333037) 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, 3450824535 + ... + 3450824572.

It is an arithmetic number, because the mean of its divisors is an integer number (34508245540).

Almost surely, 2^131131333033 is an apocalyptic number.

It is an amenable number.

131131333033 is a deficient number, since it is larger than the sum of its proper divisors (6901649127).

131131333033 is an equidigital number, since it uses as much as digits as its factorization.

131131333033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6901649126.

The product of its (nonzero) digits is 2187, while the sum is 25.

Adding to 131131333033 its reverse (330333131131), we get a palindrome (461464464164).

The spelling of 131131333033 in words is "one hundred thirty-one billion, one hundred thirty-one million, three hundred thirty-three thousand, thirty-three".