123030139969843 has 2 divisors, whose sum is σ = 123030139969844. Its totient is φ = 123030139969842.

The previous prime is 123030139969837. The next prime is 123030139969861. The reversal of 123030139969843 is 348969931030321.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123030139969843 is a prime.

It is not a weakly prime, because it can be changed into another prime (123030139969343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61515069984921 + 61515069984922.

It is an arithmetic number, because the mean of its divisors is an integer number (61515069984922).

Almost surely, 2^{123030139969843} is an apocalyptic number.

123030139969843 is a deficient number, since it is larger than the sum of its proper divisors (1).

123030139969843 is an equidigital number, since it uses as much as digits as its factorization.

123030139969843 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22674816, while the sum is 61.

The spelling of 123030139969843 in words is "one hundred twenty-three trillion, thirty billion, one hundred thirty-nine million, nine hundred sixty-nine thousand, eight hundred forty-three".