1123142330 has 16 divisors (see below), whose sum is σ = 2026227744. Its totient is φ = 448241040.

The previous prime is 1123142263. The next prime is 1123142341. The reversal of 1123142330 is 332413211.

It is a super-2 number, since 2×1123142330² = 2522897386875657800, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122336 + ... + 131195.

It is an arithmetic number, because the mean of its divisors is an integer number (126639234).

Almost surely, 2^1123142330 is an apocalyptic number.

1123142330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1123142330 is a deficient number, since it is larger than the sum of its proper divisors (903085414).

1123142330 is a wasteful number, since it uses less digits than its factorization.

1123142330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253981.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1123142330 is about 33513.3157118182. The cubic root of 1123142330 is about 1039.4691355030.

Adding to 1123142330 its reverse (332413211), we get a palindrome (1455555541).

The spelling of 1123142330 in words is "one billion, one hundred twenty-three million, one hundred forty-two thousand, three hundred thirty".