123102030211 has 2 divisors, whose sum is σ = 123102030212. Its totient is φ = 123102030210.

The previous prime is 123102030203. The next prime is 123102030241. The reversal of 123102030211 is 112030201321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123102030211 - 2³ = 123102030203 is a prime.

It is not a weakly prime, because it can be changed into another prime (123102030241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61551015105 + 61551015106.

It is an arithmetic number, because the mean of its divisors is an integer number (61551015106).

Almost surely, 2^123102030211 is an apocalyptic number.

123102030211 is a deficient number, since it is larger than the sum of its proper divisors (1).

123102030211 is an equidigital number, since it uses as much as digits as its factorization.

123102030211 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 123102030211 its reverse (112030201321), we get a palindrome (235132231532).

The spelling of 123102030211 in words is "one hundred twenty-three billion, one hundred two million, thirty thousand, two hundred eleven".