131031401 has 8 divisors (see below), whose sum is σ = 132073920. Its totient is φ = 129992688.

The previous prime is 131031379. The next prime is 131031409. The reversal of 131031401 is 104130131.

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

It is a cyclic number.

It is not a de Polignac number, because 131031401 - 2⁶ = 131031337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131031409) 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, 135020 + ... + 135986.

It is an arithmetic number, because the mean of its divisors is an integer number (16509240).

Almost surely, 2^131031401 is an apocalyptic number.

It is an amenable number.

131031401 is a deficient number, since it is larger than the sum of its proper divisors (1042519).

131031401 is an equidigital number, since it uses as much as digits as its factorization.

131031401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1903.

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

The square root of 131031401 is about 11446.8948191202. The cubic root of 131031401 is about 507.9158841961.

Adding to 131031401 its reverse (104130131), we get a palindrome (235161532).

The spelling of 131031401 in words is "one hundred thirty-one million, thirty-one thousand, four hundred one".