1123890229 has 24 divisors (see below), whose sum is σ = 1425138624. Its totient is φ = 867504000.

The previous prime is 1123890221. The next prime is 1123890241. The reversal of 1123890229 is 9220983211.

It is not a de Polignac number, because 1123890229 - 2³ = 1123890221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123890221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84429 + ... + 96829.

It is an arithmetic number, because the mean of its divisors is an integer number (59380776).

Almost surely, 2^1123890229 is an apocalyptic number.

It is an amenable number.

1123890229 is a deficient number, since it is larger than the sum of its proper divisors (301248395).

1123890229 is a wasteful number, since it uses less digits than its factorization.

1123890229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12537 (or 12526 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 1123890229 is about 33524.4720912947. The cubic root of 1123890229 is about 1039.6998113516.

The spelling of 1123890229 in words is "one billion, one hundred twenty-three million, eight hundred ninety thousand, two hundred twenty-nine".