131101401 has 4 divisors (see below), whose sum is σ = 174801872. Its totient is φ = 87400932.

The previous prime is 131101391. The next prime is 131101423. The reversal of 131101401 is 104101131.

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 not a de Polignac number, because 131101401 - 2¹⁰ = 131100377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131101601) 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, 21850231 + ... + 21850236.

It is an arithmetic number, because the mean of its divisors is an integer number (43700468).

Almost surely, 2^131101401 is an apocalyptic number.

It is an amenable number.

131101401 is a deficient number, since it is larger than the sum of its proper divisors (43700471).

131101401 is an equidigital number, since it uses as much as digits as its factorization.

131101401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43700470.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 131101401 is about 11449.9520086330. The cubic root of 131101401 is about 508.0063148925.

Adding to 131101401 its reverse (104101131), we get a palindrome (235202532).

The spelling of 131101401 in words is "one hundred thirty-one million, one hundred one thousand, four hundred one".