102030123312 has 100 divisors (see below), whose sum is σ = 318020582880. Its totient is φ = 31393878912.

The previous prime is 102030123311. The next prime is 102030123317. The reversal of 102030123312 is 213321030201.

102030123312 is a `hidden beast` number, since 10 + 20 + 301 + 2 + 331 + 2 = 666.

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 (102030123311) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3011112 + ... + 3044807.

Almost surely, 2^102030123312 is an apocalyptic number.

102030123312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102030123312 is an abundant number, since it is smaller than the sum of its proper divisors (215990459568).

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

102030123312 is a wasteful number, since it uses less digits than its factorization.

102030123312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6055952 (or 6055937 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 102030123312 its reverse (213321030201), we get a palindrome (315351153513).

The spelling of 102030123312 in words is "one hundred two billion, thirty million, one hundred twenty-three thousand, three hundred twelve".