123530824943 has 4 divisors (see below), whose sum is σ = 123588524808. Its totient is φ = 123473125080.

The previous prime is 123530824939. The next prime is 123530824979. The reversal of 123530824943 is 349428035321.

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 123530824943 - 2² = 123530824939 is a prime.

It is a super-2 number, since 2×123530824943² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123530824894 and 123530824903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123530824843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28846721 + ... + 28851002.

It is an arithmetic number, because the mean of its divisors is an integer number (30897131202).

Almost surely, 2^123530824943 is an apocalyptic number.

123530824943 is a deficient number, since it is larger than the sum of its proper divisors (57699865).

123530824943 is an equidigital number, since it uses as much as digits as its factorization.

123530824943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57699864.

The product of its (nonzero) digits is 622080, while the sum is 44.

The spelling of 123530824943 in words is "one hundred twenty-three billion, five hundred thirty million, eight hundred twenty-four thousand, nine hundred forty-three".