131311401 has 16 divisors (see below), whose sum is σ = 190673280. Its totient is φ = 79896960.

The previous prime is 131311361. The next prime is 131311423. The reversal of 131311401 is 104113131.

It is not a de Polignac number, because 131311401 - 2⁷ = 131311273 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (131311001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15445 + ... + 22386.

It is an arithmetic number, because the mean of its divisors is an integer number (11917080).

Almost surely, 2^131311401 is an apocalyptic number.

It is an amenable number.

131311401 is a deficient number, since it is larger than the sum of its proper divisors (59361879).

131311401 is a wasteful number, since it uses less digits than its factorization.

131311401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37936.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 131311401 is about 11459.1186833892. The cubic root of 131311401 is about 508.2774139927.

Adding to 131311401 its reverse (104113131), we get a palindrome (235424532).

The spelling of 131311401 in words is "one hundred thirty-one million, three hundred eleven thousand, four hundred one".