102320113212 has 36 divisors (see below), whose sum is σ = 259138990656. Its totient is φ = 34041234240.

The previous prime is 102320113201. The next prime is 102320113283. The reversal of 102320113212 is 212311023201.

102320113212 is a `hidden beast` number, since 10 + 2 + 320 + 11 + 321 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2708908 + ... + 2746419.

It is an arithmetic number, because the mean of its divisors is an integer number (7198305296).

Almost surely, 2^102320113212 is an apocalyptic number.

102320113212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102320113212 is an abundant number, since it is smaller than the sum of its proper divisors (156818877444).

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

102320113212 is a wasteful number, since it uses less digits than its factorization.

102320113212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5455858 (or 5455853 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 102320113212 its reverse (212311023201), we get a palindrome (314631136413).

The spelling of 102320113212 in words is "one hundred two billion, three hundred twenty million, one hundred thirteen thousand, two hundred twelve".