1129550423 has 2 divisors, whose sum is σ = 1129550424. Its totient is φ = 1129550422.

The previous prime is 1129550419. The next prime is 1129550491. The reversal of 1129550423 is 3240559211.

It is a weak prime.

It is an emirp because it is prime and its reverse (3240559211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1129550423 - 2² = 1129550419 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1129550423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1129550623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 564775211 + 564775212.

It is an arithmetic number, because the mean of its divisors is an integer number (564775212).

Almost surely, 2^1129550423 is an apocalyptic number.

1129550423 is a deficient number, since it is larger than the sum of its proper divisors (1).

1129550423 is an equidigital number, since it uses as much as digits as its factorization.

1129550423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 1129550423 is about 33608.7849081159. The cubic root of 1129550423 is about 1041.4422860607.

The spelling of 1129550423 in words is "one billion, one hundred twenty-nine million, five hundred fifty thousand, four hundred twenty-three".