12403117450 has 24 divisors (see below), whose sum is σ = 23347755648. Its totient is φ = 4901471280.

The previous prime is 12403117403. The next prime is 12403117457. The reversal of 12403117450 is 5471130421.

It is not an unprimeable number, because it can be changed into a prime (12403117457) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1490202 + ... + 1498501.

It is an arithmetic number, because the mean of its divisors is an integer number (972823152).

Almost surely, 2^12403117450 is an apocalyptic number.

12403117450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12403117450 is a deficient number, since it is larger than the sum of its proper divisors (10944638198).

12403117450 is a wasteful number, since it uses less digits than its factorization.

12403117450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2988798 (or 2988793 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

Adding to 12403117450 its reverse (5471130421), we get a palindrome (17874247871).

The spelling of 12403117450 in words is "twelve billion, four hundred three million, one hundred seventeen thousand, four hundred fifty".