13220123133 has 16 divisors (see below), whose sum is σ = 20184543360. Its totient is φ = 7539508416.

The previous prime is 13220123131. The next prime is 13220123143. The reversal of 13220123133 is 33132102231.

It is not a de Polignac number, because 13220123133 - 2¹ = 13220123131 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13220123131) 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, 607710 + ... + 629087.

It is an arithmetic number, because the mean of its divisors is an integer number (1261533960).

Almost surely, 2^13220123133 is an apocalyptic number.

It is an amenable number.

13220123133 is a deficient number, since it is larger than the sum of its proper divisors (6964420227).

13220123133 is a wasteful number, since it uses less digits than its factorization.

13220123133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1237316.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 13220123133 its reverse (33132102231), we get a palindrome (46352225364).

The spelling of 13220123133 in words is "thirteen billion, two hundred twenty million, one hundred twenty-three thousand, one hundred thirty-three".