1120203121 has 8 divisors (see below), whose sum is σ = 1179943200. Its totient is φ = 1060541280.

The previous prime is 1120203113. The next prime is 1120203143. The reversal of 1120203121 is 1213020211.

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

It is a cyclic number.

It is not a de Polignac number, because 1120203121 - 2³ = 1120203113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1120203421) 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, 11085 + ... + 48613.

It is an arithmetic number, because the mean of its divisors is an integer number (147492900).

Almost surely, 2^1120203121 is an apocalyptic number.

It is an amenable number.

1120203121 is a deficient number, since it is larger than the sum of its proper divisors (59740079).

1120203121 is a wasteful number, since it uses less digits than its factorization.

1120203121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39119.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1120203121 is about 33469.4356241631. The cubic root of 1120203121 is about 1038.5615966108.

Adding to 1120203121 its reverse (1213020211), we get a palindrome (2333223332).

The spelling of 1120203121 in words is "one billion, one hundred twenty million, two hundred three thousand, one hundred twenty-one".