131201404031421 has 10 divisors (see below), whose sum is σ = 195992220837182. Its totient is φ = 87467602687560.

The previous prime is 131201404031393. The next prime is 131201404031441. The reversal of 131201404031421 is 124130404102131.

It is a happy number.

131201404031421 is a `hidden beast` number, since 1 + 3 + 1 + 201 + 4 + 0 + 4 + 0 + 31 + 421 = 666.

It can be written as a sum of positive squares in only one way, i.e., 78115812039225 + 53085591992196 = 8838315^2 + 7285986^2 .

It is not a de Polignac number, because 131201404031421 - 2¹⁰ = 131201404030397 is a prime.

It is a super-3 number, since 3×131201404031421³ (a number of 43 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131201404031441) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 809885209990 + ... + 809885210151.

Almost surely, 2^{131201404031421} is an apocalyptic number.

It is an amenable number.

131201404031421 is a deficient number, since it is larger than the sum of its proper divisors (64790816805761).

131201404031421 is an equidigital number, since it uses as much as digits as its factorization.

131201404031421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1619770420153 (or 1619770420144 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

Adding to 131201404031421 its reverse (124130404102131), we get a palindrome (255331808133552).

The spelling of 131201404031421 in words is "one hundred thirty-one trillion, two hundred one billion, four hundred four million, thirty-one thousand, four hundred twenty-one".