13111402323 has 12 divisors (see below), whose sum is σ = 17724649560. Its totient is φ = 8621185536.

The previous prime is 13111402321. The next prime is 13111402331. The reversal of 13111402323 is 32320411131.

It is not a de Polignac number, because 13111402323 - 2¹ = 13111402321 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13111402323.

It is not an unprimeable number, because it can be changed into a prime (13111402321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 394078 + ... + 426051.

It is an arithmetic number, because the mean of its divisors is an integer number (1477054130).

Almost surely, 2^13111402323 is an apocalyptic number.

13111402323 is a deficient number, since it is larger than the sum of its proper divisors (4613247237).

13111402323 is an frugal number, since it uses more digits than its factorization.

13111402323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820278 (or 820205 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 13111402323 its reverse (32320411131), we get a palindrome (45431813454).

The spelling of 13111402323 in words is "thirteen billion, one hundred eleven million, four hundred two thousand, three hundred twenty-three".