123013229873 has 2 divisors, whose sum is σ = 123013229874. Its totient is φ = 123013229872.

The previous prime is 123013229869. The next prime is 123013229897. The reversal of 123013229873 is 378922310321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86643688609 + 36369541264 = 294353^2 + 190708^2 .

It is a cyclic number.

It is not a de Polignac number, because 123013229873 - 2² = 123013229869 is a prime.

It is a super-2 number, since 2×123013229873² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 123013229873.

It is not a weakly prime, because it can be changed into another prime (123013229803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61506614936 + 61506614937.

It is an arithmetic number, because the mean of its divisors is an integer number (61506614937).

Almost surely, 2^123013229873 is an apocalyptic number.

It is an amenable number.

123013229873 is a deficient number, since it is larger than the sum of its proper divisors (1).

123013229873 is an equidigital number, since it uses as much as digits as its factorization.

123013229873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 41.

The spelling of 123013229873 in words is "one hundred twenty-three billion, thirteen million, two hundred twenty-nine thousand, eight hundred seventy-three".