123373399873 has 2 divisors, whose sum is σ = 123373399874. Its totient is φ = 123373399872.

The previous prime is 123373399867. The next prime is 123373399927. The reversal of 123373399873 is 378993373321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95214210624 + 28159189249 = 308568^2 + 167807^2 .

It is an emirp because it is prime and its reverse (378993373321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123373399873 - 2¹⁷ = 123373268801 is a prime.

It is a super-2 number, since 2×123373399873² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (123373391873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61686699936 + 61686699937.

It is an arithmetic number, because the mean of its divisors is an integer number (61686699937).

Almost surely, 2^123373399873 is an apocalyptic number.

It is an amenable number.

123373399873 is a deficient number, since it is larger than the sum of its proper divisors (1).

123373399873 is an equidigital number, since it uses as much as digits as its factorization.

123373399873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15431472, while the sum is 58.

The spelling of 123373399873 in words is "one hundred twenty-three billion, three hundred seventy-three million, three hundred ninety-nine thousand, eight hundred seventy-three".