1128196923 has 12 divisors (see below), whose sum is σ = 1749856680. Its totient is φ = 644683872.

The previous prime is 1128196921. The next prime is 1128196939. The reversal of 1128196923 is 3296918211.

It is not a de Polignac number, because 1128196923 - 2¹ = 1128196921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1128196921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3837258 + ... + 3837551.

It is an arithmetic number, because the mean of its divisors is an integer number (145821390).

Almost surely, 2^1128196923 is an apocalyptic number.

1128196923 is a deficient number, since it is larger than the sum of its proper divisors (621659757).

1128196923 is an equidigital number, since it uses as much as digits as its factorization.

1128196923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7674826 (or 7674819 counting only the distinct ones).

The product of its digits is 46656, while the sum is 42.

The square root of 1128196923 is about 33588.6427680548. The cubic root of 1128196923 is about 1041.0261454140.

The spelling of 1128196923 in words is "one billion, one hundred twenty-eight million, one hundred ninety-six thousand, nine hundred twenty-three".