13423315450 has 24 divisors (see below), whose sum is σ = 24974902620. Its totient is φ = 5367705600.

The previous prime is 13423315421. The next prime is 13423315457. The reversal of 13423315450 is 5451332431.

It can be written as a sum of positive squares in 6 ways, for example, as 2646176481 + 10777138969 = 51441^2 + 103813^2 .

It is not an unprimeable number, because it can be changed into a prime (13423315457) 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, 134266 + ... + 211834.

Almost surely, 2^13423315450 is an apocalyptic number.

13423315450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13423315450 is a deficient number, since it is larger than the sum of its proper divisors (11551587170).

13423315450 is a wasteful number, since it uses less digits than its factorization.

13423315450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81042 (or 81037 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 13423315450 its reverse (5451332431), we get a palindrome (18874647881).

The spelling of 13423315450 in words is "thirteen billion, four hundred twenty-three million, three hundred fifteen thousand, four hundred fifty".