131331251433 has 8 divisors (see below), whose sum is σ = 176368108000. Its totient is φ = 86924281248.

The previous prime is 131331251431. The next prime is 131331251449. The reversal of 131331251433 is 334152133131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131331251433 - 2¹ = 131331251431 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131331251433.

It is not an unprimeable number, because it can be changed into a prime (131331251431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157471108 + ... + 157471941.

It is an arithmetic number, because the mean of its divisors is an integer number (22046013500).

Almost surely, 2^131331251433 is an apocalyptic number.

It is an amenable number.

131331251433 is a deficient number, since it is larger than the sum of its proper divisors (45036856567).

131331251433 is a wasteful number, since it uses less digits than its factorization.

131331251433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314943191.

The product of its digits is 9720, while the sum is 30.

Adding to 131331251433 its reverse (334152133131), we get a palindrome (465483384564).

The spelling of 131331251433 in words is "one hundred thirty-one billion, three hundred thirty-one million, two hundred fifty-one thousand, four hundred thirty-three".