13223250511 has 8 divisors (see below), whose sum is σ = 13288968000. Its totient is φ = 13157665920.

The previous prime is 13223250473. The next prime is 13223250517. The reversal of 13223250511 is 11505232231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13223250511 is a prime.

It is a super-2 number, since 2×13223250511² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13223250517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169315 + ... + 234763.

It is an arithmetic number, because the mean of its divisors is an integer number (1661121000).

Almost surely, 2^13223250511 is an apocalyptic number.

13223250511 is a deficient number, since it is larger than the sum of its proper divisors (65717489).

13223250511 is an equidigital number, since it uses as much as digits as its factorization.

13223250511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66449.

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 13223250511 its reverse (11505232231), we get a palindrome (24728482742).

The spelling of 13223250511 in words is "thirteen billion, two hundred twenty-three million, two hundred fifty thousand, five hundred eleven".