1123211130 has 32 divisors (see below), whose sum is σ = 2703456000. Its totient is φ = 298661952.

The previous prime is 1123211129. The next prime is 1123211147. The reversal of 1123211130 is 311123211.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43170 + ... + 64109.

It is an arithmetic number, because the mean of its divisors is an integer number (84483000).

Almost surely, 2^1123211130 is an apocalyptic number.

1123211130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1123211130 is an abundant number, since it is smaller than the sum of its proper divisors (1580244870).

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

1123211130 is a wasteful number, since it uses less digits than its factorization.

1123211130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107638.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1123211130 is about 33514.3421537705. The cubic root of 1123211130 is about 1039.4903598882.

Adding to 1123211130 its reverse (311123211), we get a palindrome (1434334341).

The spelling of 1123211130 in words is "one billion, one hundred twenty-three million, two hundred eleven thousand, one hundred thirty".