123347000840 has 64 divisors (see below), whose sum is σ = 330968367360. Its totient is φ = 40451685120.

The previous prime is 123347000801. The next prime is 123347000851. The reversal of 123347000840 is 48000743321.

It is a junction number, because it is equal to n+sod(n) for n = 123347000797 and 123347000806.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 9570191 + ... + 9583070.

It is an arithmetic number, because the mean of its divisors is an integer number (5171380740).

Almost surely, 2^123347000840 is an apocalyptic number.

123347000840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123347000840 is an abundant number, since it is smaller than the sum of its proper divisors (207621366520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123347000840 is a wasteful number, since it uses less digits than its factorization.

123347000840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19153302 (or 19153298 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The spelling of 123347000840 in words is "one hundred twenty-three billion, three hundred forty-seven million, eight hundred forty", and thus it is an aban number.