12101123 has 2 divisors, whose sum is σ = 12101124. Its totient is φ = 12101122.

The previous prime is 12101099. The next prime is 12101147. The reversal of 12101123 is 32110121.

It is a balanced prime because it is at equal distance from previous prime (12101099) and next prime (12101147).

It is a cyclic number.

It is not a de Polignac number, because 12101123 - 2⁸ = 12100867 is a prime.

It is a super-2 number, since 2×12101123² = 292874355722258, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (12101153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6050561 + 6050562.

It is an arithmetic number, because the mean of its divisors is an integer number (6050562).

Almost surely, 2^12101123 is an apocalyptic number.

12101123 is a deficient number, since it is larger than the sum of its proper divisors (1).

12101123 is an equidigital number, since it uses as much as digits as its factorization.

12101123 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 11.

The square root of 12101123 is about 3478.6668423406. Note that the first 3 decimals coincide. The cubic root of 12101123 is about 229.5841445890.

Adding to 12101123 its reverse (32110121), we get a palindrome (44211244).

The spelling of 12101123 in words is "twelve million, one hundred one thousand, one hundred twenty-three".