1121403430 has 32 divisors (see below), whose sum is σ = 2310513984. Its totient is φ = 383876736.

The previous prime is 1121403403. The next prime is 1121403431. The reversal of 1121403430 is 343041211.

It is a junction number, because it is equal to n+sod(n) for n = 1121403398 and 1121403407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121403431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33444 + ... + 57976.

It is an arithmetic number, because the mean of its divisors is an integer number (72203562).

Almost surely, 2^1121403430 is an apocalyptic number.

1121403430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1121403430 is an abundant number, since it is smaller than the sum of its proper divisors (1189110554).

1121403430 is a wasteful number, since it uses less digits than its factorization.

1121403430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25200.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1121403430 is about 33487.3622430910. The cubic root of 1121403430 is about 1038.9324072928.

Adding to 1121403430 its reverse (343041211), we get a palindrome (1464444641).

The spelling of 1121403430 in words is "one billion, one hundred twenty-one million, four hundred three thousand, four hundred thirty".