1121510243 has 8 divisors (see below), whose sum is σ = 1325923680. Its totient is φ = 928146240.

The previous prime is 1121510237. The next prime is 1121510251. The reversal of 1121510243 is 3420151211.

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

It is not a de Polignac number, because 1121510243 - 2¹⁶ = 1121444707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121510233) 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, 2762138 + ... + 2762543.

It is an arithmetic number, because the mean of its divisors is an integer number (165740460).

Almost surely, 2^1121510243 is an apocalyptic number.

1121510243 is a deficient number, since it is larger than the sum of its proper divisors (204413437).

1121510243 is an equidigital number, since it uses as much as digits as its factorization.

1121510243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5524717.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 1121510243 is about 33488.9570306392. The cubic root of 1121510243 is about 1038.9653921405.

Adding to 1121510243 its reverse (3420151211), we get a palindrome (4541661454).

The spelling of 1121510243 in words is "one billion, one hundred twenty-one million, five hundred ten thousand, two hundred forty-three".