13220235233403 has 16 divisors (see below), whose sum is σ = 19555355664000. Its totient is φ = 7876462695680.

The previous prime is 13220235233383. The next prime is 13220235233407. The reversal of 13220235233403 is 30433253202231.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 13220235233403 - 2⁵ = 13220235233371 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (13220235233407) 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, 3395025078 + ... + 3395028971.

It is an arithmetic number, because the mean of its divisors is an integer number (1222209729000).

Almost surely, 2^{13220235233403} is an apocalyptic number.

13220235233403 is a deficient number, since it is larger than the sum of its proper divisors (6335120430597).

13220235233403 is a wasteful number, since it uses less digits than its factorization.

13220235233403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6790054122.

The product of its (nonzero) digits is 77760, while the sum is 33.

Adding to 13220235233403 its reverse (30433253202231), we get a palindrome (43653488435634).

The spelling of 13220235233403 in words is "thirteen trillion, two hundred twenty billion, two hundred thirty-five million, two hundred thirty-three thousand, four hundred three".