131100501 has 16 divisors (see below), whose sum is σ = 200021504. Its totient is φ = 74821104.

The previous prime is 131100433. The next prime is 131100521. The reversal of 131100501 is 105001131.

It is not a de Polignac number, because 131100501 - 2¹³ = 131092309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131100521) 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, 15606 + ... + 22488.

It is an arithmetic number, because the mean of its divisors is an integer number (12501344).

Almost surely, 2^131100501 is an apocalyptic number.

It is an amenable number.

131100501 is a deficient number, since it is larger than the sum of its proper divisors (68921003).

131100501 is an equidigital number, since it uses as much as digits as its factorization.

131100501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7800.

The product of its (nonzero) digits is 15, while the sum is 12.

The square root of 131100501 is about 11449.9127070908. The cubic root of 131100501 is about 508.0051524164.

Adding to 131100501 its reverse (105001131), we get a palindrome (236101632).

The spelling of 131100501 in words is "one hundred thirty-one million, one hundred thousand, five hundred one".