102130221002123 has 16 divisors (see below), whose sum is σ = 105950660619264. Its totient is φ = 98343791189280.

The previous prime is 102130221002111. The next prime is 102130221002179. The reversal of 102130221002123 is 321200122031201.

It is a cyclic number.

It is not a de Polignac number, because 102130221002123 - 2¹² = 102130220998027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102130221002095 and 102130221002104.

It is not an unprimeable number, because it can be changed into a prime (102130221005123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4124465 + ... + 14875202.

It is an arithmetic number, because the mean of its divisors is an integer number (6621916288704).

Almost surely, 2^{102130221002123} is an apocalyptic number.

102130221002123 is a deficient number, since it is larger than the sum of its proper divisors (3820439617141).

102130221002123 is a wasteful number, since it uses less digits than its factorization.

102130221002123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19000562.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 102130221002123 its reverse (321200122031201), we get a palindrome (423330343033324).

The spelling of 102130221002123 in words is "one hundred two trillion, one hundred thirty billion, two hundred twenty-one million, two thousand, one hundred twenty-three".