1121053216 has 12 divisors (see below), whose sum is σ = 2207073582. Its totient is φ = 560526592.

The previous prime is 1121053211. The next prime is 1121053267. The reversal of 1121053216 is 6123501211.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 948393616 + 172659600 = 30796^2 + 13140^2 .

It is not an unprimeable number, because it can be changed into a prime (1121053211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17516425 + ... + 17516488.

Almost surely, 2^1121053216 is an apocalyptic number.

1121053216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1121053216 is a deficient number, since it is larger than the sum of its proper divisors (1086020366).

1121053216 is an equidigital number, since it uses as much as digits as its factorization.

1121053216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35032923 (or 35032915 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 1121053216 is about 33482.1327875032. The cubic root of 1121053216 is about 1038.8242432585.

Adding to 1121053216 its reverse (6123501211), we get a palindrome (7244554427).

The spelling of 1121053216 in words is "one billion, one hundred twenty-one million, fifty-three thousand, two hundred sixteen".