131311334021 has 8 divisors (see below), whose sum is σ = 151617211200. Its totient is φ = 111392235648.

The previous prime is 131311333999. The next prime is 131311334053. The reversal of 131311334021 is 120433113131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131311334021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131311334621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96693971 + ... + 96695328.

It is an arithmetic number, because the mean of its divisors is an integer number (18952151400).

Almost surely, 2^131311334021 is an apocalyptic number.

It is an amenable number.

131311334021 is a deficient number, since it is larger than the sum of its proper divisors (20305877179).

131311334021 is an equidigital number, since it uses as much as digits as its factorization.

131311334021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193389403.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 131311334021 its reverse (120433113131), we get a palindrome (251744447152).

The spelling of 131311334021 in words is "one hundred thirty-one billion, three hundred eleven million, three hundred thirty-four thousand, twenty-one".