1011200203 has 4 divisors (see below), whose sum is σ = 1088984848. Its totient is φ = 933415560.

The previous prime is 1011200173. The next prime is 1011200207. The reversal of 1011200203 is 3020021101.

1011200203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3020021101 = 19 ⋅158948479.

It is a cyclic number.

It is not a de Polignac number, because 1011200203 - 2⁹ = 1011199691 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1011200203.

It is not an unprimeable number, because it can be changed into a prime (1011200207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38892303 + ... + 38892328.

It is an arithmetic number, because the mean of its divisors is an integer number (272246212).

Almost surely, 2^1011200203 is an apocalyptic number.

1011200203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1011200203 is a deficient number, since it is larger than the sum of its proper divisors (77784645).

1011200203 is an equidigital number, since it uses as much as digits as its factorization.

1011200203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77784644.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1011200203 is about 31799.3742548497. The cubic root of 1011200203 is about 1003.7195488033.

Adding to 1011200203 its reverse (3020021101), we get a palindrome (4031221304).

The spelling of 1011200203 in words is "one billion, eleven million, two hundred thousand, two hundred three".