123394570843 has 16 divisors (see below), whose sum is σ = 135552787200. Its totient is φ = 111803963040.

The previous prime is 123394570823. The next prime is 123394570867. The reversal of 123394570843 is 348075493321.

It is a cyclic number.

It is not a de Polignac number, because 123394570843 - 2⁵ = 123394570811 is a prime.

It is a super-2 number, since 2×123394570843² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123394570813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6077713 + ... + 6097981.

It is an arithmetic number, because the mean of its divisors is an integer number (8472049200).

Almost surely, 2^123394570843 is an apocalyptic number.

123394570843 is a deficient number, since it is larger than the sum of its proper divisors (12158216357).

123394570843 is a wasteful number, since it uses less digits than its factorization.

123394570843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34242.

The product of its (nonzero) digits is 2177280, while the sum is 49.

The spelling of 123394570843 in words is "one hundred twenty-three billion, three hundred ninety-four million, five hundred seventy thousand, eight hundred forty-three".