131345454433233 has 4 divisors (see below), whose sum is σ = 175127272577648. Its totient is φ = 87563636288820.

The previous prime is 131345454433231. The next prime is 131345454433261. The reversal of 131345454433233 is 332334454543131.

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 not a de Polignac number, because 131345454433233 - 2¹ = 131345454433231 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131345454433231) 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, 21890909072203 + ... + 21890909072208.

It is an arithmetic number, because the mean of its divisors is an integer number (43781818144412).

Almost surely, 2^{131345454433233} is an apocalyptic number.

It is an amenable number.

131345454433233 is a deficient number, since it is larger than the sum of its proper divisors (43781818144415).

131345454433233 is an equidigital number, since it uses as much as digits as its factorization.

131345454433233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43781818144414.

The product of its digits is 9331200, while the sum is 48.

The spelling of 131345454433233 in words is "one hundred thirty-one trillion, three hundred forty-five billion, four hundred fifty-four million, four hundred thirty-three thousand, two hundred thirty-three".