131425440444401 has 4 divisors (see below), whose sum is σ = 131425705952112. Its totient is φ = 131425174936692.

The previous prime is 131425440444323. The next prime is 131425440444409. The reversal of 131425440444401 is 104444044524131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131425440444401 - 2¹⁰ = 131425440443377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131425440444409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132009971 + ... + 133001816.

It is an arithmetic number, because the mean of its divisors is an integer number (32856426488028).

Almost surely, 2^{131425440444401} is an apocalyptic number.

It is an amenable number.

131425440444401 is a deficient number, since it is larger than the sum of its proper divisors (265507711).

131425440444401 is an equidigital number, since it uses as much as digits as its factorization.

131425440444401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265507710.

The product of its (nonzero) digits is 491520, while the sum is 41.

Adding to 131425440444401 its reverse (104444044524131), we get a palindrome (235869484968532).

The spelling of 131425440444401 in words is "one hundred thirty-one trillion, four hundred twenty-five billion, four hundred forty million, four hundred forty-four thousand, four hundred one".