13211101123 has 16 divisors (see below), whose sum is σ = 15042894336. Its totient is φ = 11484728640.

The previous prime is 13211101121. The next prime is 13211101133. The reversal of 13211101123 is 32110111231.

It is a happy number.

It is not a de Polignac number, because 13211101123 - 2¹ = 13211101121 is a prime.

It is a super-2 number, since 2×13211101123² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13211101097 and 13211101106.

It is not an unprimeable number, because it can be changed into a prime (13211101121) 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, 1714786 + ... + 1722472.

It is an arithmetic number, because the mean of its divisors is an integer number (940180896).

Almost surely, 2^13211101123 is an apocalyptic number.

13211101123 is a deficient number, since it is larger than the sum of its proper divisors (1831793213).

13211101123 is a wasteful number, since it uses less digits than its factorization.

13211101123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14514.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 13211101123 its reverse (32110111231), we get a palindrome (45321212354).

The spelling of 13211101123 in words is "thirteen billion, two hundred eleven million, one hundred one thousand, one hundred twenty-three".