11321203023 has 144 divisors (see below), whose sum is σ = 19639882080. Its totient is φ = 6253977600.

The previous prime is 11321203021. The next prime is 11321203039. The reversal of 11321203023 is 32030212311.

It is not a de Polignac number, because 11321203023 - 2¹ = 11321203021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11321202987 and 11321203005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11321203021) 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 143 ways as a sum of consecutive naturals, for example, 62547993 + ... + 62548173.

It is an arithmetic number, because the mean of its divisors is an integer number (136388070).

Almost surely, 2^11321203023 is an apocalyptic number.

11321203023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11321203023 is a deficient number, since it is larger than the sum of its proper divisors (8318679057).

11321203023 is a wasteful number, since it uses less digits than its factorization.

11321203023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330 (or 314 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 11321203023 its reverse (32030212311), we get a palindrome (43351415334).

The spelling of 11321203023 in words is "eleven billion, three hundred twenty-one million, two hundred three thousand, twenty-three".