102131420555 has 8 divisors (see below), whose sum is σ = 124870114512. Its totient is φ = 80163529888.

The previous prime is 102131420491. The next prime is 102131420561. The reversal of 102131420555 is 555024131201.

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 102131420555 - 2⁶ = 102131420491 is a prime.

It is a Duffinian 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, 192700529 + ... + 192701058.

It is an arithmetic number, because the mean of its divisors is an integer number (15608764314).

Almost surely, 2^102131420555 is an apocalyptic number.

102131420555 is a deficient number, since it is larger than the sum of its proper divisors (22738693957).

102131420555 is an equidigital number, since it uses as much as digits as its factorization.

102131420555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385401645.

The product of its (nonzero) digits is 6000, while the sum is 29.

Adding to 102131420555 its reverse (555024131201), we get a palindrome (657155551756).

The spelling of 102131420555 in words is "one hundred two billion, one hundred thirty-one million, four hundred twenty thousand, five hundred fifty-five".