131310401 has 4 divisors (see below), whose sum is σ = 131653632. Its totient is φ = 130967172.

The previous prime is 131310391. The next prime is 131310437. The reversal of 131310401 is 104013131.

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 131310401 - 2⁶ = 131310337 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (131310461) 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, 171041 + ... + 171806.

It is an arithmetic number, because the mean of its divisors is an integer number (32913408).

Almost surely, 2^131310401 is an apocalyptic number.

It is an amenable number.

131310401 is a deficient number, since it is larger than the sum of its proper divisors (343231).

131310401 is an equidigital number, since it uses as much as digits as its factorization.

131310401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343230.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 131310401 is about 11459.0750499331. The cubic root of 131310401 is about 508.2761237298.

Adding to 131310401 its reverse (104013131), we get a palindrome (235323532).

The spelling of 131310401 in words is "one hundred thirty-one million, three hundred ten thousand, four hundred one".