131516203359 has 4 divisors (see below), whose sum is σ = 175354937816. Its totient is φ = 87677468904.

The previous prime is 131516203337. The next prime is 131516203381. The reversal of 131516203359 is 953302615131.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (131516203337) and next prime (131516203381).

It is not a de Polignac number, because 131516203359 - 2⁸ = 131516203103 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 (131516203459) 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, 21919367224 + ... + 21919367229.

It is an arithmetic number, because the mean of its divisors is an integer number (43838734454).

Almost surely, 2^131516203359 is an apocalyptic number.

131516203359 is a deficient number, since it is larger than the sum of its proper divisors (43838734457).

131516203359 is an equidigital number, since it uses as much as digits as its factorization.

131516203359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43838734456.

The product of its (nonzero) digits is 72900, while the sum is 39.

The spelling of 131516203359 in words is "one hundred thirty-one billion, five hundred sixteen million, two hundred three thousand, three hundred fifty-nine".