210000010123 has 2 divisors, whose sum is σ = 210000010124. Its totient is φ = 210000010122.

The previous prime is 210000010081. The next prime is 210000010127. The reversal of 210000010123 is 321010000012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 210000010123 - 2³⁷ = 72561056651 is a prime.

It is not a weakly prime, because it can be changed into another prime (210000010127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105000005061 + 105000005062.

It is an arithmetic number, because the mean of its divisors is an integer number (105000005062).

Almost surely, 2^210000010123 is an apocalyptic number.

210000010123 is a deficient number, since it is larger than the sum of its proper divisors (1).

210000010123 is an equidigital number, since it uses as much as digits as its factorization.

210000010123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 210000010123 its reverse (321010000012), we get a palindrome (531010010135).

The spelling of 210000010123 in words is "two hundred ten billion, ten thousand, one hundred twenty-three".