1151204423 has 2 divisors, whose sum is σ = 1151204424. Its totient is φ = 1151204422.

The previous prime is 1151204413. The next prime is 1151204443. The reversal of 1151204423 is 3244021511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1151204423 - 2⁴ = 1151204407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1151204413) by changing a digit.

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 as a sum of consecutive naturals, namely, 575602211 + 575602212.

It is an arithmetic number, because the mean of its divisors is an integer number (575602212).

Almost surely, 2^1151204423 is an apocalyptic number.

1151204423 is a deficient number, since it is larger than the sum of its proper divisors (1).

1151204423 is an equidigital number, since it uses as much as digits as its factorization.

1151204423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1151204423 is about 33929.4035167139. The cubic root of 1151204423 is about 1048.0551824832.

Adding to 1151204423 its reverse (3244021511), we get a palindrome (4395225934).

The spelling of 1151204423 in words is "one billion, one hundred fifty-one million, two hundred four thousand, four hundred twenty-three".