1121275276 has 24 divisors (see below), whose sum is σ = 2141519184. Its totient is φ = 509455680.

The previous prime is 1121275249. The next prime is 1121275279. The reversal of 1121275276 is 6725721211.

It is not an unprimeable number, because it can be changed into a prime (1121275279) 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, 151846 + ... + 159058.

It is an arithmetic number, because the mean of its divisors is an integer number (89229966).

Almost surely, 2^1121275276 is an apocalyptic number.

It is an amenable number.

1121275276 is a deficient number, since it is larger than the sum of its proper divisors (1020243908).

1121275276 is a wasteful number, since it uses less digits than its factorization.

1121275276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10761 (or 10759 counting only the distinct ones).

The product of its digits is 11760, while the sum is 34.

The square root of 1121275276 is about 33485.4487203024. The cubic root of 1121275276 is about 1038.8928293817.

Adding to 1121275276 its reverse (6725721211), we get a palindrome (7846996487).

The spelling of 1121275276 in words is "one billion, one hundred twenty-one million, two hundred seventy-five thousand, two hundred seventy-six".