12320634450 has 48 divisors (see below), whose sum is σ = 30870211680. Its totient is φ = 3251627520.

The previous prime is 12320634367. The next prime is 12320634461. The reversal of 12320634450 is 5443602321.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 408840 + ... + 437939.

It is an arithmetic number, because the mean of its divisors is an integer number (643129410).

Almost surely, 2^12320634450 is an apocalyptic number.

12320634450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12320634450 is an abundant number, since it is smaller than the sum of its proper divisors (18549577230).

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

12320634450 is a wasteful number, since it uses less digits than its factorization.

12320634450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846891 (or 846886 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

The spelling of 12320634450 in words is "twelve billion, three hundred twenty million, six hundred thirty-four thousand, four hundred fifty".