123225442999 has 2 divisors, whose sum is σ = 123225443000. Its totient is φ = 123225442998.

The previous prime is 123225442987. The next prime is 123225443009. The reversal of 123225442999 is 999244522321.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (999244522321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123225442999 - 2¹³ = 123225434807 is a prime.

It is a super-3 number, since 3×123225442999³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123225442199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61612721499 + 61612721500.

It is an arithmetic number, because the mean of its divisors is an integer number (61612721500).

Almost surely, 2^123225442999 is an apocalyptic number.

123225442999 is a deficient number, since it is larger than the sum of its proper divisors (1).

123225442999 is an equidigital number, since it uses as much as digits as its factorization.

123225442999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2799360, while the sum is 52.

The spelling of 123225442999 in words is "one hundred twenty-three billion, two hundred twenty-five million, four hundred forty-two thousand, nine hundred ninety-nine".