131202113 has 4 divisors (see below), whose sum is σ = 149945280. Its totient is φ = 112458948.

The previous prime is 131202089. The next prime is 131202139. The reversal of 131202113 is 311202131.

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 131202113 - 2¹⁴ = 131185729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131202713) 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, 9371573 + ... + 9371586.

It is an arithmetic number, because the mean of its divisors is an integer number (37486320).

Almost surely, 2^131202113 is an apocalyptic number.

It is an amenable number.

131202113 is a deficient number, since it is larger than the sum of its proper divisors (18743167).

131202113 is an equidigital number, since it uses as much as digits as its factorization.

131202113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18743166.

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

The square root of 131202113 is about 11454.3490867006. The cubic root of 131202113 is about 508.1363649561.

Adding to 131202113 its reverse (311202131), we get a palindrome (442404244).

The spelling of 131202113 in words is "one hundred thirty-one million, two hundred two thousand, one hundred thirteen".