1121432404 has 12 divisors (see below), whose sum is σ = 2077948404. Its totient is φ = 527732864.

The previous prime is 1121432281. The next prime is 1121432441. The reversal of 1121432404 is 4042341211.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 410143504 + 711288900 = 20252^2 + 26670^2 .

It is a super-2 number, since 2×1121432404² = 2515221273482438432, which contains 22 as substring.

It is a congruent number.

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, 8245759 + ... + 8245894.

It is an arithmetic number, because the mean of its divisors is an integer number (173162367).

Almost surely, 2^1121432404 is an apocalyptic number.

It is an amenable number.

1121432404 is a deficient number, since it is larger than the sum of its proper divisors (956516000).

1121432404 is a wasteful number, since it uses less digits than its factorization.

1121432404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16491674 (or 16491672 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 1121432404 is about 33487.7948512589. The cubic root of 1121432404 is about 1038.9413549405.

Adding to 1121432404 its reverse (4042341211), we get a palindrome (5163773615).

The spelling of 1121432404 in words is "one billion, one hundred twenty-one million, four hundred thirty-two thousand, four hundred four".