1121023203 has 8 divisors (see below), whose sum is σ = 1496064528. Its totient is φ = 746665344.

The previous prime is 1121023171. The next prime is 1121023261. The reversal of 1121023203 is 3023201211.

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

It is not a de Polignac number, because 1121023203 - 2⁵ = 1121023171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1121023283) 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, 167026 + ... + 173607.

It is an arithmetic number, because the mean of its divisors is an integer number (187008066).

Almost surely, 2^1121023203 is an apocalyptic number.

1121023203 is a deficient number, since it is larger than the sum of its proper divisors (375041325).

1121023203 is a wasteful number, since it uses less digits than its factorization.

1121023203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341733.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1121023203 is about 33481.6845902353. The cubic root of 1121023203 is about 1038.8149726578.

Adding to 1121023203 its reverse (3023201211), we get a palindrome (4144224414).

The spelling of 1121023203 in words is "one billion, one hundred twenty-one million, twenty-three thousand, two hundred three".