102402024012 has 48 divisors (see below), whose sum is σ = 265600026720. Its totient is φ = 34119441216.

The previous prime is 102402023959. The next prime is 102402024019. The reversal of 102402024012 is 210420204201.

102402024012 is a `hidden beast` number, since 1 + 0 + 240 + 20 + 2 + 401 + 2 = 666.

It is a super-2 number, since 2×102402024012² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (102402024019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53418 + ... + 455694.

It is an arithmetic number, because the mean of its divisors is an integer number (5533333890).

Almost surely, 2^102402024012 is an apocalyptic number.

102402024012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102402024012 is an abundant number, since it is smaller than the sum of its proper divisors (163198002708).

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

102402024012 is a wasteful number, since it uses less digits than its factorization.

102402024012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404647 (or 404639 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 102402024012 its reverse (210420204201), we get a palindrome (312822228213).

The spelling of 102402024012 in words is "one hundred two billion, four hundred two million, twenty-four thousand, twelve".