13011123303 has 24 divisors (see below), whose sum is σ = 19011997056. Its totient is φ = 8573688000.

The previous prime is 13011123269. The next prime is 13011123313. The reversal of 13011123303 is 30332111031.

It is a happy number.

It is not a de Polignac number, because 13011123303 - 2¹⁶ = 13011057767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13011123313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 539973 + ... + 563553.

It is an arithmetic number, because the mean of its divisors is an integer number (792166544).

Almost surely, 2^13011123303 is an apocalyptic number.

13011123303 is a deficient number, since it is larger than the sum of its proper divisors (6000873753).

13011123303 is a wasteful number, since it uses less digits than its factorization.

13011123303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24295 (or 24292 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 13011123303 its reverse (30332111031), we get a palindrome (43343234334).

The spelling of 13011123303 in words is "thirteen billion, eleven million, one hundred twenty-three thousand, three hundred three".