1121430439 has 2 divisors, whose sum is σ = 1121430440. Its totient is φ = 1121430438.

The previous prime is 1121430421. The next prime is 1121430451. The reversal of 1121430439 is 9340341211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1121430439 - 2⁷ = 1121430311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121430469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560715219 + 560715220.

It is an arithmetic number, because the mean of its divisors is an integer number (560715220).

Almost surely, 2^1121430439 is an apocalyptic number.

1121430439 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121430439 is an equidigital number, since it uses as much as digits as its factorization.

1121430439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 1121430439 is about 33487.7655121986. The cubic root of 1121430439 is about 1038.9407481210.

The spelling of 1121430439 in words is "one billion, one hundred twenty-one million, four hundred thirty thousand, four hundred thirty-nine".