11401203 has 16 divisors (see below), whose sum is σ = 17559936. Its totient is φ = 6503040.

The previous prime is 11401199. The next prime is 11401207. The reversal of 11401203 is 30210411.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11401199) and next prime (11401207).

It is not a de Polignac number, because 11401203 - 2² = 11401199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11401207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9601 + ... + 10722.

It is an arithmetic number, because the mean of its divisors is an integer number (1097496).

Almost surely, 2^11401203 is an apocalyptic number.

11401203 is a deficient number, since it is larger than the sum of its proper divisors (6158733).

11401203 is a wasteful number, since it uses less digits than its factorization.

11401203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20354.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 11401203 is about 3376.5667474522. The cubic root of 11401203 is about 225.0696278337.

Adding to 11401203 its reverse (30210411), we get a palindrome (41611614).

The spelling of 11401203 in words is "eleven million, four hundred one thousand, two hundred three".