102421130120 has 64 divisors (see below), whose sum is σ = 248003434800. Its totient is φ = 37926420480.

The previous prime is 102421130089. The next prime is 102421130131. The reversal of 102421130120 is 21031124201.

It can be written as a sum of positive squares in 8 ways, for example, as 35125506724 + 67295623396 = 187418^2 + 259414^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

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 15 ways as a sum of consecutive naturals, for example, 1193105 + ... + 1276064.

Almost surely, 2^102421130120 is an apocalyptic number.

102421130120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102421130120 is an abundant number, since it is smaller than the sum of its proper divisors (145582304680).

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

102421130120 is a wasteful number, since it uses less digits than its factorization.

102421130120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2469258 (or 2469254 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 102421130120 its reverse (21031124201), we get a palindrome (123452254321).

The spelling of 102421130120 in words is "one hundred two billion, four hundred twenty-one million, one hundred thirty thousand, one hundred twenty".