1121232040 has 16 divisors (see below), whose sum is σ = 2522772180. Its totient is φ = 448492800.

The previous prime is 1121232023. The next prime is 1121232061. The reversal of 1121232040 is 402321211.

It can be written as a sum of positive squares in 2 ways, for example, as 1119973156 + 1258884 = 33466^2 + 1122^2 .

It is a super-2 number, since 2×1121232040² = 2514322575045123200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14015361 + ... + 14015440.

Almost surely, 2^1121232040 is an apocalyptic number.

1121232040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121232040 is an abundant number, since it is smaller than the sum of its proper divisors (1401540140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1121232040 is a wasteful number, since it uses less digits than its factorization.

1121232040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28030812 (or 28030808 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1121232040 is about 33484.8031202216. The cubic root of 1121232040 is about 1038.8794760899.

Adding to 1121232040 its reverse (402321211), we get a palindrome (1523553251).

The spelling of 1121232040 in words is "one billion, one hundred twenty-one million, two hundred thirty-two thousand, forty".