1121304402 has 24 divisors (see below), whose sum is σ = 2433784860. Its totient is φ = 373107840.

The previous prime is 1121304307. The next prime is 1121304413. The reversal of 1121304402 is 2044031211.

1121304402 is a `hidden beast` number, since 11 + 213 + 0 + 440 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 966525921 + 154778481 = 31089^2 + 12441^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44499 + ... + 64982.

Almost surely, 2^1121304402 is an apocalyptic number.

1121304402 is an abundant number, since it is smaller than the sum of its proper divisors (1312480458).

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

1121304402 is a wasteful number, since it uses less digits than its factorization.

1121304402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110058 (or 110055 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1121304402 is about 33485.8836228044. The cubic root of 1121304402 is about 1038.9018246543.

Adding to 1121304402 its reverse (2044031211), we get a palindrome (3165335613).

The spelling of 1121304402 in words is "one billion, one hundred twenty-one million, three hundred four thousand, four hundred two".