131404355240421 has 8 divisors (see below), whose sum is σ = 176585380271104. Its totient is φ = 86913116851680.

The previous prime is 131404355240383. The next prime is 131404355240453. The reversal of 131404355240421 is 124042553404131.

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

It is not a de Polignac number, because 131404355240421 - 2¹⁹ = 131404354716133 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131404355240421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131404355240621) 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, 172446660040 + ... + 172446660801.

It is an arithmetic number, because the mean of its divisors is an integer number (22073172533888).

Almost surely, 2^{131404355240421} is an apocalyptic number.

It is an amenable number.

131404355240421 is a deficient number, since it is larger than the sum of its proper divisors (45181025030683).

131404355240421 is a wasteful number, since it uses less digits than its factorization.

131404355240421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344893320971.

The product of its (nonzero) digits is 230400, while the sum is 39.

The spelling of 131404355240421 in words is "one hundred thirty-one trillion, four hundred four billion, three hundred fifty-five million, two hundred forty thousand, four hundred twenty-one".