131120200021515 has 32 divisors (see below), whose sum is σ = 218923013675520. Its totient is φ = 66887466809856.

The previous prime is 131120200021477. The next prime is 131120200021537. The reversal of 131120200021515 is 515120002021131.

It is not a de Polignac number, because 131120200021515 - 2⁷ = 131120200021387 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91971 + ... + 16194099.

It is an arithmetic number, because the mean of its divisors is an integer number (6841344177360).

Almost surely, 2^{131120200021515} is an apocalyptic number.

131120200021515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

131120200021515 is a deficient number, since it is larger than the sum of its proper divisors (87802813654005).

131120200021515 is a wasteful number, since it uses less digits than its factorization.

131120200021515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16125763.

The product of its (nonzero) digits is 600, while the sum is 24.

Adding to 131120200021515 its reverse (515120002021131), we get a palindrome (646240202042646).

The spelling of 131120200021515 in words is "one hundred thirty-one trillion, one hundred twenty billion, two hundred million, twenty-one thousand, five hundred fifteen".