1103211123 has 32 divisors (see below), whose sum is σ = 1756876800. Its totient is φ = 602068896.

The previous prime is 1103211103. The next prime is 1103211163. The reversal of 1103211123 is 3211123011.

It is a happy number.

It is not a de Polignac number, because 1103211123 - 2¹⁰ = 1103210099 is a prime.

It is a super-2 number, since 2×1103211123² = 2434149563821842258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1103211103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 413568 + ... + 416226.

It is an arithmetic number, because the mean of its divisors is an integer number (54902400).

Almost surely, 2^1103211123 is an apocalyptic number.

1103211123 is a deficient number, since it is larger than the sum of its proper divisors (653665677).

1103211123 is a wasteful number, since it uses less digits than its factorization.

1103211123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3551.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1103211123 is about 33214.6221264069. The cubic root of 1103211123 is about 1033.2836179226.

Adding to 1103211123 its reverse (3211123011), we get a palindrome (4314334134).

It can be divided in two parts, 11032 and 11123, that added together give a triangular number (22155 = T₂₁₀).

The spelling of 1103211123 in words is "one billion, one hundred three million, two hundred eleven thousand, one hundred twenty-three".