102130312122 has 96 divisors (see below), whose sum is σ = 229796216832. Its totient is φ = 32755871232.

The previous prime is 102130312117. The next prime is 102130312183. The reversal of 102130312122 is 221213031201.

102130312122 is a `hidden beast` number, since 102 + 130 + 312 + 122 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 102130312095 and 102130312104.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28502343 + ... + 28505925.

It is an arithmetic number, because the mean of its divisors is an integer number (2393710592).

Almost surely, 2^102130312122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102130312122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114898108416).

102130312122 is an abundant number, since it is smaller than the sum of its proper divisors (127665904710).

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

102130312122 is a wasteful number, since it uses less digits than its factorization.

102130312122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4092 (or 4089 counting only the distinct ones).

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

Adding to 102130312122 its reverse (221213031201), we get a palindrome (323343343323).

The spelling of 102130312122 in words is "one hundred two billion, one hundred thirty million, three hundred twelve thousand, one hundred twenty-two".