131154321235215 has 16 divisors (see below), whose sum is σ = 209854534074336. Its totient is φ = 69946431292800.

The previous prime is 131154321235141. The next prime is 131154321235243. The reversal of 131154321235215 is 512532123451131.

It is not a de Polignac number, because 131154321235215 - 2¹⁵ = 131154321202447 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158325156 + ... + 159151385.

It is an arithmetic number, because the mean of its divisors is an integer number (13115908379646).

Almost surely, 2^{131154321235215} is an apocalyptic number.

131154321235215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

131154321235215 is a deficient number, since it is larger than the sum of its proper divisors (78700212839121).

131154321235215 is a wasteful number, since it uses less digits than its factorization.

131154321235215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317504090.

The product of its digits is 108000, while the sum is 39.

Adding to 131154321235215 its reverse (512532123451131), we get a palindrome (643686444686346).

The spelling of 131154321235215 in words is "one hundred thirty-one trillion, one hundred fifty-four billion, three hundred twenty-one million, two hundred thirty-five thousand, two hundred fifteen".