123101213239 has 2 divisors, whose sum is σ = 123101213240. Its totient is φ = 123101213238.

The previous prime is 123101213233. The next prime is 123101213269. The reversal of 123101213239 is 932312101321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123101213239 - 2⁹ = 123101212727 is a prime.

It is a super-2 number, since 2×123101213239² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123101213233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61550606619 + 61550606620.

It is an arithmetic number, because the mean of its divisors is an integer number (61550606620).

Almost surely, 2^123101213239 is an apocalyptic number.

123101213239 is a deficient number, since it is larger than the sum of its proper divisors (1).

123101213239 is an equidigital number, since it uses as much as digits as its factorization.

123101213239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 28.

The spelling of 123101213239 in words is "one hundred twenty-three billion, one hundred one million, two hundred thirteen thousand, two hundred thirty-nine".