1113211203 has 16 divisors (see below), whose sum is σ = 1607397120. Its totient is φ = 681221664.

The previous prime is 1113211181. The next prime is 1113211217. The reversal of 1113211203 is 3021123111.

It is a happy number.

It is not a de Polignac number, because 1113211203 - 2¹⁷ = 1113080131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1113211103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72751 + ... + 86712.

It is an arithmetic number, because the mean of its divisors is an integer number (100462320).

Almost surely, 2^1113211203 is an apocalyptic number.

1113211203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1113211203 is a deficient number, since it is larger than the sum of its proper divisors (494185917).

1113211203 is a wasteful number, since it uses less digits than its factorization.

1113211203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159658.

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

The square root of 1113211203 is about 33364.8198406645. The cubic root of 1113211203 is about 1036.3963053379.

Adding to 1113211203 its reverse (3021123111), we get a palindrome (4134334314).

The spelling of 1113211203 in words is "one billion, one hundred thirteen million, two hundred eleven thousand, two hundred three".