123210000127 has 2 divisors, whose sum is σ = 123210000128. Its totient is φ = 123210000126.

The previous prime is 123210000113. The next prime is 123210000143. The reversal of 123210000127 is 721000012321.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123210000127 is a prime.

It is a super-2 number, since 2×123210000127² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123210000827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61605000063 + 61605000064.

It is an arithmetic number, because the mean of its divisors is an integer number (61605000064).

Almost surely, 2^123210000127 is an apocalyptic number.

123210000127 is a deficient number, since it is larger than the sum of its proper divisors (1).

123210000127 is an equidigital number, since it uses as much as digits as its factorization.

123210000127 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 19.

Adding to 123210000127 its reverse (721000012321), we get a palindrome (844210012448).

The spelling of 123210000127 in words is "one hundred twenty-three billion, two hundred ten million, one hundred twenty-seven", and thus it is an aban number.