131013202309 has 16 divisors (see below), whose sum is σ = 145674339840. Its totient is φ = 116819662960.

The previous prime is 131013202297. The next prime is 131013202343. The reversal of 131013202309 is 903202310131.

It is not a de Polignac number, because 131013202309 - 2⁵ = 131013202277 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 (131013202379) 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 15 ways as a sum of consecutive naturals, for example, 59664 + ... + 515350.

It is an arithmetic number, because the mean of its divisors is an integer number (9104646240).

Almost surely, 2^131013202309 is an apocalyptic number.

It is an amenable number.

131013202309 is a deficient number, since it is larger than the sum of its proper divisors (14661137531).

131013202309 is a wasteful number, since it uses less digits than its factorization.

131013202309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456200.

The product of its (nonzero) digits is 972, while the sum is 25.

The spelling of 131013202309 in words is "one hundred thirty-one billion, thirteen million, two hundred two thousand, three hundred nine".