1113421203 has 24 divisors (see below), whose sum is σ = 1662242816. Its totient is φ = 717433200.

The previous prime is 1113421163. The next prime is 1113421207. The reversal of 1113421203 is 3021243111.

It is not a de Polignac number, because 1113421203 - 2⁶ = 1113421139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1113421207) 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, 274476 + ... + 278502.

Almost surely, 2^1113421203 is an apocalyptic number.

1113421203 is a deficient number, since it is larger than the sum of its proper divisors (548821613).

1113421203 is a wasteful number, since it uses less digits than its factorization.

1113421203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5055 (or 5052 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1113421203 is about 33367.9667195950. The cubic root of 1113421203 is about 1036.4614710313.

Adding to 1113421203 its reverse (3021243111), we get a palindrome (4134664314).

The spelling of 1113421203 in words is "one billion, one hundred thirteen million, four hundred twenty-one thousand, two hundred three".