1121430403 has 2 divisors, whose sum is σ = 1121430404. Its totient is φ = 1121430402.

The previous prime is 1121430397. The next prime is 1121430413. The reversal of 1121430403 is 3040341211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1121430403 - 2⁹ = 1121429891 is a prime.

It is a super-2 number, since 2×1121430403² = 2515212297545484818, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1121430413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560715201 + 560715202.

It is an arithmetic number, because the mean of its divisors is an integer number (560715202).

Almost surely, 2^1121430403 is an apocalyptic number.

1121430403 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121430403 is an equidigital number, since it uses as much as digits as its factorization.

1121430403 is an evil number, because the sum of its binary digits is even.

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

The square root of 1121430403 is about 33487.7649746889. The cubic root of 1121430403 is about 1038.9407370037.

Adding to 1121430403 its reverse (3040341211), we get a palindrome (4161771614).

The spelling of 1121430403 in words is "one billion, one hundred twenty-one million, four hundred thirty thousand, four hundred three".