131330335421 has 8 divisors (see below), whose sum is σ = 136920088800. Its totient is φ = 125855834832.

The previous prime is 131330335349. The next prime is 131330335429. The reversal of 131330335421 is 124533033131.

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

It is a cyclic number.

It is not a de Polignac number, because 131330335421 - 2²² = 131326141117 is a prime.

It is a super-3 number, since 3×131330335421³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131330335429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28810871 + ... + 28815428.

It is an arithmetic number, because the mean of its divisors is an integer number (17115011100).

Almost surely, 2^131330335421 is an apocalyptic number.

It is an amenable number.

131330335421 is a deficient number, since it is larger than the sum of its proper divisors (5589753379).

131330335421 is an equidigital number, since it uses as much as digits as its factorization.

131330335421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57626395.

The product of its (nonzero) digits is 9720, while the sum is 29.

Adding to 131330335421 its reverse (124533033131), we get a palindrome (255863368552).

The spelling of 131330335421 in words is "one hundred thirty-one billion, three hundred thirty million, three hundred thirty-five thousand, four hundred twenty-one".