11720203 has 8 divisors (see below), whose sum is σ = 12948480. Its totient is φ = 10519080.

The previous prime is 11720197. The next prime is 11720251. The reversal of 11720203 is 30202711.

It is a happy number.

11720203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11720203 - 2⁹ = 11719691 is a prime.

It is a super-2 number, since 2×11720203² = 274726316722418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11720603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5875 + ... + 7612.

It is an arithmetic number, because the mean of its divisors is an integer number (1618560).

Almost surely, 2^11720203 is an apocalyptic number.

11720203 is a deficient number, since it is larger than the sum of its proper divisors (1228277).

11720203 is a wasteful number, since it uses less digits than its factorization.

11720203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13577.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 11720203 is about 3423.4782020629. The cubic root of 11720203 is about 227.1494613648.

Adding to 11720203 its reverse (30202711), we get a palindrome (41922914).

The spelling of 11720203 in words is "eleven million, seven hundred twenty thousand, two hundred three".