12040123 has 2 divisors, whose sum is σ = 12040124. Its totient is φ = 12040122.

The previous prime is 12040099. The next prime is 12040139. The reversal of 12040123 is 32104021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12040123 - 2¹³ = 12031931 is a prime.

It is not a weakly prime, because it can be changed into another prime (12040163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6020061 + 6020062.

It is an arithmetic number, because the mean of its divisors is an integer number (6020062).

Almost surely, 2^12040123 is an apocalyptic number.

12040123 is a deficient number, since it is larger than the sum of its proper divisors (1).

12040123 is an equidigital number, since it uses as much as digits as its factorization.

12040123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 12040123 is about 3469.8880385396. Note that the first 3 decimals coincide. The cubic root of 12040123 is about 229.1977278155.

Adding to 12040123 its reverse (32104021), we get a palindrome (44144144).

The spelling of 12040123 in words is "twelve million, forty thousand, one hundred twenty-three".