1123003211 has 4 divisors (see below), whose sum is σ = 1225094424. Its totient is φ = 1020912000.

The previous prime is 1123003183. The next prime is 1123003213.

1123003211 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1123003211 - 2²⁶ = 1055894347 is a prime.

It is a super-2 number, since 2×1123003211² = 2522272423832621042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1123003213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51045590 + ... + 51045611.

It is an arithmetic number, because the mean of its divisors is an integer number (306273606).

Almost surely, 2^1123003211 is an apocalyptic number.

1123003211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1123003211 is a deficient number, since it is larger than the sum of its proper divisors (102091213).

1123003211 is a wasteful number, since it uses less digits than its factorization.

1123003211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102091212.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1123003211 is about 33511.2400695647. The cubic root of 1123003211 is about 1039.4262154818.

It can be divided in two parts, 112300 and 3211, that added together give a palindrome (115511).

The spelling of 1123003211 in words is "one billion, one hundred twenty-three million, three thousand, two hundred eleven".