102400012 has 24 divisors (see below), whose sum is σ = 210529872. Its totient is φ = 42964800.

The previous prime is 102400007. The next prime is 102400013. The reversal of 102400012 is 210004201.

It is not an unprimeable number, because it can be changed into a prime (102400013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88939 + ... + 90082.

It is an arithmetic number, because the mean of its divisors is an integer number (8772078).

Almost surely, 2^102400012 is an apocalyptic number.

It is an amenable number.

102400012 is an abundant number, since it is smaller than the sum of its proper divisors (108129860).

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

102400012 is a wasteful number, since it uses less digits than its factorization.

102400012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179049 (or 179047 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 102400012 is about 10119.2891054659. The cubic root of 102400012 is about 467.8428563892.

Adding to 102400012 its reverse (210004201), we get a palindrome (312404213).

The spelling of 102400012 in words is "one hundred two million, four hundred thousand, twelve".