102302320212 has 18 divisors (see below), whose sum is σ = 258597531738. Its totient is φ = 34100773392.

The previous prime is 102302320157. The next prime is 102302320213. The reversal of 102302320212 is 212023203201.

102302320212 is a `hidden beast` number, since 102 + 30 + 2 + 320 + 212 = 666.

102302320212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 87075747396 + 15226572816 = 295086^2 + 123396^2 .

It is a tau number, because it is divible by the number of its divisors (18).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102302320213) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1420865523 + ... + 1420865594.

It is an arithmetic number, because the mean of its divisors is an integer number (14366529541).

Almost surely, 2^102302320212 is an apocalyptic number.

102302320212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102302320212 is an abundant number, since it is smaller than the sum of its proper divisors (156295211526).

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

102302320212 is a wasteful number, since it uses less digits than its factorization.

102302320212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2841731127 (or 2841731122 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 102302320212 its reverse (212023203201), we get a palindrome (314325523413).

The spelling of 102302320212 in words is "one hundred two billion, three hundred two million, three hundred twenty thousand, two hundred twelve".