123010042209 has 12 divisors (see below), whose sum is σ = 166746226608. Its totient is φ = 80662315440.

The previous prime is 123010042159. The next prime is 123010042217. The reversal of 123010042209 is 902240010321.

It is not a de Polignac number, because 123010042209 - 2¹² = 123010038113 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (123010042709) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5498559 + ... + 5520884.

It is an arithmetic number, because the mean of its divisors is an integer number (13895518884).

Almost surely, 2^123010042209 is an apocalyptic number.

It is an amenable number.

123010042209 is a deficient number, since it is larger than the sum of its proper divisors (43736184399).

123010042209 is an equidigital number, since it uses as much as digits as its factorization.

123010042209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11019568 (or 11019507 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The spelling of 123010042209 in words is "one hundred twenty-three billion, ten million, forty-two thousand, two hundred nine".