1123230100 has 18 divisors (see below), whose sum is σ = 2437409534. Its totient is φ = 449292000.

The previous prime is 1123230091. The next prime is 1123230169. The reversal of 1123230100 is 10323211.

It can be written as a sum of positive squares in 3 ways, for example, as 372798864 + 750431236 = 19308^2 + 27394^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5616051 + ... + 5616250.

Almost surely, 2^1123230100 is an apocalyptic number.

1123230100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1123230100 is an abundant number, since it is smaller than the sum of its proper divisors (1314179434).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1123230100 is a wasteful number, since it uses less digits than its factorization.

1123230100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11232315 (or 11232308 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1123230100 is about 33514.6251657392. The cubic root of 1123230100 is about 1039.4962118664.

Adding to 1123230100 its reverse (10323211), we get a palindrome (1133553311).

The spelling of 1123230100 in words is "one billion, one hundred twenty-three million, two hundred thirty thousand, one hundred".