131215112303 has 4 divisors (see below), whose sum is σ = 143143758888. Its totient is φ = 119286465720.

The previous prime is 131215112291. The next prime is 131215112377. The reversal of 131215112303 is 303211512131.

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

It is a cyclic number.

It is not a de Polignac number, because 131215112303 - 2⁶ = 131215112239 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 (131215112603) 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, 5964323276 + ... + 5964323297.

It is an arithmetic number, because the mean of its divisors is an integer number (35785939722).

Almost surely, 2^131215112303 is an apocalyptic number.

131215112303 is a deficient number, since it is larger than the sum of its proper divisors (11928646585).

131215112303 is a wasteful number, since it uses less digits than its factorization.

131215112303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11928646584.

The product of its (nonzero) digits is 540, while the sum is 23.

Adding to 131215112303 its reverse (303211512131), we get a palindrome (434426624434).

The spelling of 131215112303 in words is "one hundred thirty-one billion, two hundred fifteen million, one hundred twelve thousand, three hundred three".