131200501 has 4 divisors (see below), whose sum is σ = 131860000. Its totient is φ = 130541004.

The previous prime is 131200471. The next prime is 131200513. The reversal of 131200501 is 105002131.

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 131200501 - 2⁵ = 131200469 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 (131200541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 329451 + ... + 329848.

It is an arithmetic number, because the mean of its divisors is an integer number (32965000).

Almost surely, 2^131200501 is an apocalyptic number.

It is an amenable number.

131200501 is a deficient number, since it is larger than the sum of its proper divisors (659499).

131200501 is an equidigital number, since it uses as much as digits as its factorization.

131200501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659498.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 131200501 is about 11454.2787201988. The cubic root of 131200501 is about 508.1342838941.

Adding to 131200501 its reverse (105002131), we get a palindrome (236202632).

The spelling of 131200501 in words is "one hundred thirty-one million, two hundred thousand, five hundred one".