123624545321 has 2 divisors, whose sum is σ = 123624545322. Its totient is φ = 123624545320.

The previous prime is 123624545279. The next prime is 123624545371. The reversal of 123624545321 is 123545426321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91528031296 + 32096514025 = 302536^2 + 179155^2 .

It is a cyclic number.

It is not a de Polignac number, because 123624545321 - 2²² = 123620351017 is a prime.

It is a super-3 number, since 3×123624545321³ (a number of 34 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (123624545371) 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, 61812272660 + 61812272661.

It is an arithmetic number, because the mean of its divisors is an integer number (61812272661).

Almost surely, 2^123624545321 is an apocalyptic number.

It is an amenable number.

123624545321 is a deficient number, since it is larger than the sum of its proper divisors (1).

123624545321 is an equidigital number, since it uses as much as digits as its factorization.

123624545321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 172800, while the sum is 38.

The spelling of 123624545321 in words is "one hundred twenty-three billion, six hundred twenty-four million, five hundred forty-five thousand, three hundred twenty-one".