1121202123203 has 6 divisors (see below), whose sum is σ = 1140527644524. Its totient is φ = 1102198693964.

The previous prime is 1121202123193. The next prime is 1121202123253. The reversal of 1121202123203 is 3023212021211.

It is not a de Polignac number, because 1121202123203 - 2¹⁰ = 1121202122179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121202123253) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 161042501 + ... + 161049462.

It is an arithmetic number, because the mean of its divisors is an integer number (190087940754).

Almost surely, 2^{1121202123203} is an apocalyptic number.

1121202123203 is a deficient number, since it is larger than the sum of its proper divisors (19325521321).

1121202123203 is an frugal number, since it uses more digits than its factorization.

1121202123203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322092081 (or 322092022 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1121202123203 its reverse (3023212021211), we get a palindrome (4144414144414).

The spelling of 1121202123203 in words is "one trillion, one hundred twenty-one billion, two hundred two million, one hundred twenty-three thousand, two hundred three".