123146768149199 has 4 divisors (see below), whose sum is σ = 125234001507720. Its totient is φ = 121059534790680.

The previous prime is 123146768149189. The next prime is 123146768149217. The reversal of 123146768149199 is 991941867641321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123146768149199 - 2³⁶ = 123078048672463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123146768149189) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1043616679172 + ... + 1043616679289.

It is an arithmetic number, because the mean of its divisors is an integer number (31308500376930).

Almost surely, 2^{123146768149199} is an apocalyptic number.

123146768149199 is a deficient number, since it is larger than the sum of its proper divisors (2087233358521).

123146768149199 is an equidigital number, since it uses as much as digits as its factorization.

123146768149199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2087233358520.

The product of its digits is 141087744, while the sum is 71.

The spelling of 123146768149199 in words is "one hundred twenty-three trillion, one hundred forty-six billion, seven hundred sixty-eight million, one hundred forty-nine thousand, one hundred ninety-nine".