131201142104421 has 32 divisors (see below), whose sum is σ = 199669078695680. Its totient is φ = 85084806138048.

The previous prime is 131201142104419. The next prime is 131201142104467. The reversal of 131201142104421 is 124401241102131.

131201142104421 is a `hidden beast` number, since 1 + 3 + 1 + 2 + 0 + 1 + 1 + 4 + 210 + 442 + 1 = 666.

It is not a de Polignac number, because 131201142104421 - 2¹ = 131201142104419 is a prime.

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 (131201142004421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9815986 + ... + 18940851.

It is an arithmetic number, because the mean of its divisors is an integer number (6239658709240).

Almost surely, 2^{131201142104421} is an apocalyptic number.

It is an amenable number.

131201142104421 is a deficient number, since it is larger than the sum of its proper divisors (68467936591259).

131201142104421 is a wasteful number, since it uses less digits than its factorization.

131201142104421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28761450 (or 28761444 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

Adding to 131201142104421 its reverse (124401241102131), we get a palindrome (255602383206552).

The spelling of 131201142104421 in words is "one hundred thirty-one trillion, two hundred one billion, one hundred forty-two million, one hundred four thousand, four hundred twenty-one".