12020203 has 16 divisors (see below), whose sum is σ = 13418496. Its totient is φ = 10697760.

The previous prime is 12020161. The next prime is 12020209. The reversal of 12020203 is 30202021.

It is a cyclic number.

It is not a de Polignac number, because 12020203 - 2⁹ = 12019691 is a prime.

It is a super-2 number, since 2×12020203² = 288970560322418, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12020203.

It is not an unprimeable number, because it can be changed into a prime (12020209) 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, 62838 + ... + 63028.

It is an arithmetic number, because the mean of its divisors is an integer number (838656).

Almost surely, 2^12020203 is an apocalyptic number.

12020203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12020203 is a deficient number, since it is larger than the sum of its proper divisors (1398293).

12020203 is a wasteful number, since it uses less digits than its factorization.

12020203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 12020203 is about 3467.0164406879. The cubic root of 12020203 is about 229.0712579296.

Adding to 12020203 its reverse (30202021), we get a palindrome (42222224).

The spelling of 12020203 in words is "twelve million, twenty thousand, two hundred three".