131201404000021 has 8 divisors (see below), whose sum is σ = 133993863941760. Its totient is φ = 128408983254528.

The previous prime is 131201404000001. The next prime is 131201404000039. The reversal of 131201404000021 is 120000404102131.

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 131201404000021 - 2²⁵ = 131201370445589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131201404000001) 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, 2983311 + ... + 16471276.

It is an arithmetic number, because the mean of its divisors is an integer number (16749232992720).

Almost surely, 2^{131201404000021} is an apocalyptic number.

It is an amenable number.

131201404000021 is a deficient number, since it is larger than the sum of its proper divisors (2792459941739).

131201404000021 is a wasteful number, since it uses less digits than its factorization.

131201404000021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19598123.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 131201404000021 its reverse (120000404102131), we get a palindrome (251201808102152).

The spelling of 131201404000021 in words is "one hundred thirty-one trillion, two hundred one billion, four hundred four million, twenty-one", and thus it is an aban number.