131433423424311 has 4 divisors (see below), whose sum is σ = 175244564565752. Its totient is φ = 87622282282872.

The previous prime is 131433423424267. The next prime is 131433423424337. The reversal of 131433423424311 is 113424324334131.

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

It is a de Polignac number, because none of the positive numbers 2^k-131433423424311 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 131433423424311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131433423424411) 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, 21905570570716 + ... + 21905570570721.

It is an arithmetic number, because the mean of its divisors is an integer number (43811141141438).

Almost surely, 2^{131433423424311} is an apocalyptic number.

131433423424311 is a deficient number, since it is larger than the sum of its proper divisors (43811141141441).

131433423424311 is an equidigital number, since it uses as much as digits as its factorization.

131433423424311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43811141141440.

The product of its digits is 248832, while the sum is 39.

Adding to 131433423424311 its reverse (113424324334131), we get a palindrome (244857747758442).

The spelling of 131433423424311 in words is "one hundred thirty-one trillion, four hundred thirty-three billion, four hundred twenty-three million, four hundred twenty-four thousand, three hundred eleven".