102012130123 has 2 divisors, whose sum is σ = 102012130124. Its totient is φ = 102012130122.

The previous prime is 102012130097. The next prime is 102012130189. The reversal of 102012130123 is 321031210201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102012130123 - 2²⁹ = 101475259211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102012130097 and 102012130106.

It is not a weakly prime, because it can be changed into another prime (102012130223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51006065061 + 51006065062.

It is an arithmetic number, because the mean of its divisors is an integer number (51006065062).

Almost surely, 2^102012130123 is an apocalyptic number.

102012130123 is a deficient number, since it is larger than the sum of its proper divisors (1).

102012130123 is an equidigital number, since it uses as much as digits as its factorization.

102012130123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 102012130123 its reverse (321031210201), we get a palindrome (423043340324).

The spelling of 102012130123 in words is "one hundred two billion, twelve million, one hundred thirty thousand, one hundred twenty-three".