123940610719 has 2 divisors, whose sum is σ = 123940610720. Its totient is φ = 123940610718.

The previous prime is 123940610683. The next prime is 123940610743. The reversal of 123940610719 is 917016049321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123940610719 - 2²³ = 123932222111 is a prime.

It is a super-2 number, since 2×123940610719² (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 (123340610719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61970305359 + 61970305360.

It is an arithmetic number, because the mean of its divisors is an integer number (61970305360).

Almost surely, 2^123940610719 is an apocalyptic number.

123940610719 is a deficient number, since it is larger than the sum of its proper divisors (1).

123940610719 is an equidigital number, since it uses as much as digits as its factorization.

123940610719 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 43.

The spelling of 123940610719 in words is "one hundred twenty-three billion, nine hundred forty million, six hundred ten thousand, seven hundred nineteen".