13011321323 has 48 divisors (see below), whose sum is σ = 17706295296. Its totient is φ = 9283921920.

The previous prime is 13011321317. The next prime is 13011321347. The reversal of 13011321323 is 32312311031.

It is not a de Polignac number, because 13011321323 - 2⁴ = 13011321307 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13011321295 and 13011321304.

It is not an unprimeable number, because it can be changed into a prime (13011321383) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1648715 + ... + 1656587.

It is an arithmetic number, because the mean of its divisors is an integer number (368881152).

Almost surely, 2^13011321323 is an apocalyptic number.

13011321323 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13011321323 is a deficient number, since it is larger than the sum of its proper divisors (4694973973).

13011321323 is a wasteful number, since it uses less digits than its factorization.

13011321323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8044 (or 8031 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 13011321323 its reverse (32312311031), we get a palindrome (45323632354).

The spelling of 13011321323 in words is "thirteen billion, eleven million, three hundred twenty-one thousand, three hundred twenty-three".