12123000913 has 2 divisors, whose sum is σ = 12123000914. Its totient is φ = 12123000912.

The previous prime is 12123000907. The next prime is 12123000947. The reversal of 12123000913 is 31900032121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7131295809 + 4991705104 = 84447^2 + 70652^2 .

It is a cyclic number.

It is not a de Polignac number, because 12123000913 - 2⁹ = 12123000401 is a prime.

It is a super-2 number, since 2×12123000913² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12123000973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6061500456 + 6061500457.

It is an arithmetic number, because the mean of its divisors is an integer number (6061500457).

Almost surely, 2^12123000913 is an apocalyptic number.

It is an amenable number.

12123000913 is a deficient number, since it is larger than the sum of its proper divisors (1).

12123000913 is an equidigital number, since it uses as much as digits as its factorization.

12123000913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 22.

The spelling of 12123000913 in words is "twelve billion, one hundred twenty-three million, nine hundred thirteen", and thus it is an aban number.