102420513412 has 24 divisors (see below), whose sum is σ = 204870677760. Its totient is φ = 43888152000.

The previous prime is 102420513409. The next prime is 102420513421. The reversal of 102420513412 is 214315024201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65212 + ... + 457267.

It is an arithmetic number, because the mean of its divisors is an integer number (8536278240).

Almost surely, 2^102420513412 is an apocalyptic number.

It is an amenable number.

102420513412 is an abundant number, since it is smaller than the sum of its proper divisors (102450164348).

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

102420513412 is a wasteful number, since it uses less digits than its factorization.

102420513412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529491 (or 529489 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 102420513412 its reverse (214315024201), we get a palindrome (316735537613).

The spelling of 102420513412 in words is "one hundred two billion, four hundred twenty million, five hundred thirteen thousand, four hundred twelve".