102130322123 has 4 divisors (see below), whose sum is σ = 102518650608. Its totient is φ = 101741993640.

The previous prime is 102130322083. The next prime is 102130322191. The reversal of 102130322123 is 321223031201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102130322123 - 2¹⁶ = 102130256587 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102130322095 and 102130322104.

It is not an unprimeable number, because it can be changed into a prime (102130322023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194163848 + ... + 194164373.

It is an arithmetic number, because the mean of its divisors is an integer number (25629662652).

Almost surely, 2^102130322123 is an apocalyptic number.

102130322123 is a deficient number, since it is larger than the sum of its proper divisors (388328485).

102130322123 is an equidigital number, since it uses as much as digits as its factorization.

102130322123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388328484.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 102130322123 its reverse (321223031201), we get a palindrome (423353353324).

The spelling of 102130322123 in words is "one hundred two billion, one hundred thirty million, three hundred twenty-two thousand, one hundred twenty-three".