11321031303 has 12 divisors (see below), whose sum is σ = 16794563448. Its totient is φ = 7343371440.

The previous prime is 11321031283. The next prime is 11321031331. The reversal of 11321031303 is 30313012311.

It is a happy number.

11321031303 is a `hidden beast` number, since 11 + 321 + 0 + 31 + 303 = 666.

It is not a de Polignac number, because 11321031303 - 2¹⁷ = 11320900231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11321031373) 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, 16998213 + ... + 16998878.

It is an arithmetic number, because the mean of its divisors is an integer number (1399546954).

Almost surely, 2^11321031303 is an apocalyptic number.

11321031303 is a deficient number, since it is larger than the sum of its proper divisors (5473532145).

11321031303 is a wasteful number, since it uses less digits than its factorization.

11321031303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33997134 (or 33997131 counting only the distinct ones).

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

Adding to 11321031303 its reverse (30313012311), we get a palindrome (41634043614).

The spelling of 11321031303 in words is "eleven billion, three hundred twenty-one million, thirty-one thousand, three hundred three".