102556430420 has 12 divisors (see below), whose sum is σ = 215368503924. Its totient is φ = 41022572160.

The previous prime is 102556430401. The next prime is 102556430423. The reversal of 102556430420 is 24034655201.

It can be written as a sum of positive squares in 2 ways, for example, as 76611596944 + 25944833476 = 276788^2 + 161074^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102556430423) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2563910741 + ... + 2563910780.

It is an arithmetic number, because the mean of its divisors is an integer number (17947375327).

Almost surely, 2^102556430420 is an apocalyptic number.

102556430420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102556430420 is an abundant number, since it is smaller than the sum of its proper divisors (112812073504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102556430420 is a wasteful number, since it uses less digits than its factorization.

102556430420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5127821530 (or 5127821528 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

The spelling of 102556430420 in words is "one hundred two billion, five hundred fifty-six million, four hundred thirty thousand, four hundred twenty".