13203212423403 has 16 divisors (see below), whose sum is σ = 18370065669120. Its totient is φ = 8419266180864.

The previous prime is 13203212423369. The next prime is 13203212423441. The reversal of 13203212423403 is 30432421230231.

It is a happy number.

It is not a de Polignac number, because 13203212423403 - 2⁶ = 13203212423339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13203212423473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1439643 + ... + 5336571.

It is an arithmetic number, because the mean of its divisors is an integer number (1148129104320).

Almost surely, 2^{13203212423403} is an apocalyptic number.

13203212423403 is a deficient number, since it is larger than the sum of its proper divisors (5166853245717).

13203212423403 is a wasteful number, since it uses less digits than its factorization.

13203212423403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3946058.

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 13203212423403 its reverse (30432421230231), we get a palindrome (43635633653634).

The spelling of 13203212423403 in words is "thirteen trillion, two hundred three billion, two hundred twelve million, four hundred twenty-three thousand, four hundred three".