123000000011 has 16 divisors (see below), whose sum is σ = 142523410368. Its totient is φ = 103965120000.

The previous prime is 122999999981. The next prime is 123000000143. The reversal of 123000000011 is 110000000321.

It is a de Polignac number, because none of the positive numbers 2^k-123000000011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123000050011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3200711 + ... + 3238911.

It is an arithmetic number, because the mean of its divisors is an integer number (8907713148).

Almost surely, 2^123000000011 is an apocalyptic number.

123000000011 is a deficient number, since it is larger than the sum of its proper divisors (19523410357).

123000000011 is an equidigital number, since it uses as much as digits as its factorization.

123000000011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44582.

The product of its (nonzero) digits is 6, while the sum is 8.

Adding to 123000000011 its reverse (110000000321), we get a palindrome (233000000332).

The spelling of 123000000011 in words is "one hundred twenty-three billion, eleven", and thus it is an aban number.