102030120312 has 32 divisors (see below), whose sum is σ = 255087617280. Its totient is φ = 34008397920.

The previous prime is 102030120299. The next prime is 102030120317. The reversal of 102030120312 is 213021030201.

It is a junction number, because it is equal to n+sod(n) for n = 102030120291 and 102030120300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102030120317) 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, 469953 + ... + 651855.

It is an arithmetic number, because the mean of its divisors is an integer number (7971488040).

Almost surely, 2^102030120312 is an apocalyptic number.

102030120312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102030120312 is an abundant number, since it is smaller than the sum of its proper divisors (153057496968).

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

102030120312 is a wasteful number, since it uses less digits than its factorization.

102030120312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205283 (or 205279 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 102030120312 its reverse (213021030201), we get a palindrome (315051150513).

The spelling of 102030120312 in words is "one hundred two billion, thirty million, one hundred twenty thousand, three hundred twelve".