131023412555 has 12 divisors (see below), whose sum is σ = 182897988480. Its totient is φ = 89844625584.

The previous prime is 131023412521. The next prime is 131023412563. The reversal of 131023412555 is 555214320131.

It is not a de Polignac number, because 131023412555 - 2¹⁰ = 131023411531 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 267394475 + ... + 267394964.

It is an arithmetic number, because the mean of its divisors is an integer number (15241499040).

Almost surely, 2^131023412555 is an apocalyptic number.

131023412555 is a deficient number, since it is larger than the sum of its proper divisors (51874575925).

131023412555 is an equidigital number, since it uses as much as digits as its factorization.

131023412555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534789458 (or 534789451 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 32.

Adding to 131023412555 its reverse (555214320131), we get a palindrome (686237732686).

The spelling of 131023412555 in words is "one hundred thirty-one billion, twenty-three million, four hundred twelve thousand, five hundred fifty-five".