11211321303 has 24 divisors (see below), whose sum is σ = 19931239328. Its totient is φ = 5913663552.

The previous prime is 11211321269. The next prime is 11211321353. The reversal of 11211321303 is 30312311211.

It is not a de Polignac number, because 11211321303 - 2⁸ = 11211321047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11211321353) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6843700 + ... + 6845337.

Almost surely, 2^11211321303 is an apocalyptic number.

11211321303 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11211321303 is a deficient number, since it is larger than the sum of its proper divisors (8719918025).

11211321303 is a wasteful number, since it uses less digits than its factorization.

11211321303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13689063 (or 13689060 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 11211321303 its reverse (30312311211), we get a palindrome (41523632514).

The spelling of 11211321303 in words is "eleven billion, two hundred eleven million, three hundred twenty-one thousand, three hundred three".