102130420 has 24 divisors (see below), whose sum is σ = 245113344. Its totient is φ = 35016096.

The previous prime is 102130403. The next prime is 102130451. The reversal of 102130420 is 24031201.

It is a self number, because there is not a number n which added to its sum of digits gives 102130420.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 364612 + ... + 364891.

It is an arithmetic number, because the mean of its divisors is an integer number (10213056).

Almost surely, 2^102130420 is an apocalyptic number.

102130420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102130420 is an abundant number, since it is smaller than the sum of its proper divisors (142982924).

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

102130420 is a wasteful number, since it uses less digits than its factorization.

102130420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729519 (or 729517 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 102130420 is about 10105.9596278632. The cubic root of 102130420 is about 467.4319269467.

Adding to 102130420 its reverse (24031201), we get a palindrome (126161621).

The spelling of 102130420 in words is "one hundred two million, one hundred thirty thousand, four hundred twenty".