123224351639 has 2 divisors, whose sum is σ = 123224351640. Its totient is φ = 123224351638.

The previous prime is 123224351633. The next prime is 123224351689. The reversal of 123224351639 is 936153422321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123224351639 - 2¹⁶ = 123224286103 is a prime.

It is a super-4 number, since 4×123224351639⁴ (a number of 45 digits) contains 4444 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 123224351596 and 123224351605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123224351633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61612175819 + 61612175820.

It is an arithmetic number, because the mean of its divisors is an integer number (61612175820).

Almost surely, 2^123224351639 is an apocalyptic number.

123224351639 is a deficient number, since it is larger than the sum of its proper divisors (1).

123224351639 is an equidigital number, since it uses as much as digits as its factorization.

123224351639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 233280, while the sum is 41.

The spelling of 123224351639 in words is "one hundred twenty-three billion, two hundred twenty-four million, three hundred fifty-one thousand, six hundred thirty-nine".