1011121203 has 16 divisors (see below), whose sum is σ = 1393053696. Its totient is φ = 651678720.

The previous prime is 1011121171. The next prime is 1011121219. The reversal of 1011121203 is 3021211101.

1011121203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1011121203 - 2⁵ = 1011121171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1011121283) 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, 97651 + ... + 107507.

It is an arithmetic number, because the mean of its divisors is an integer number (87065856).

Almost surely, 2^1011121203 is an apocalyptic number.

1011121203 is a deficient number, since it is larger than the sum of its proper divisors (381932493).

1011121203 is a wasteful number, since it uses less digits than its factorization.

1011121203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10994.

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

The square root of 1011121203 is about 31798.1320677803. The cubic root of 1011121203 is about 1003.6934095979.

Adding to 1011121203 its reverse (3021211101), we get a palindrome (4032332304).

The spelling of 1011121203 in words is "one billion, eleven million, one hundred twenty-one thousand, two hundred three".