123039309896 has 32 divisors (see below), whose sum is σ = 240118041600. Its totient is φ = 59033862720.

The previous prime is 123039309893. The next prime is 123039309919. The reversal of 123039309896 is 698903930321.

It is not an unprimeable number, because it can be changed into a prime (123039309893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1589000 + ... + 1664631.

It is an arithmetic number, because the mean of its divisors is an integer number (7503688800).

Almost surely, 2^123039309896 is an apocalyptic number.

It is an amenable number.

123039309896 is a deficient number, since it is larger than the sum of its proper divisors (117078731704).

123039309896 is a wasteful number, since it uses less digits than its factorization.

123039309896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3253829 (or 3253825 counting only the distinct ones).

The product of its (nonzero) digits is 1889568, while the sum is 53.

The spelling of 123039309896 in words is "one hundred twenty-three billion, thirty-nine million, three hundred nine thousand, eight hundred ninety-six".