131503203322455 has 8 divisors (see below), whose sum is σ = 210405125315952. Its totient is φ = 70135041771968.

The previous prime is 131503203322433. The next prime is 131503203322483. The reversal of 131503203322455 is 554223302305131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131503203322455 - 2²⁶ = 131503136213591 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4383440110734 + ... + 4383440110763.

It is an arithmetic number, because the mean of its divisors is an integer number (26300640664494).

Almost surely, 2^{131503203322455} is an apocalyptic number.

131503203322455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

131503203322455 is a deficient number, since it is larger than the sum of its proper divisors (78901921993497).

131503203322455 is an equidigital number, since it uses as much as digits as its factorization.

131503203322455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8766880221505.

The product of its (nonzero) digits is 324000, while the sum is 39.

Adding to 131503203322455 its reverse (554223302305131), we get a palindrome (685726505627586).

The spelling of 131503203322455 in words is "one hundred thirty-one trillion, five hundred three billion, two hundred three million, three hundred twenty-two thousand, four hundred fifty-five".