1111001232 has 40 divisors (see below), whose sum is σ = 3131004960. Its totient is φ = 336666880.

The previous prime is 1111001189. The next prime is 1111001233. The reversal of 1111001232 is 2321001111.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (1111001233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1051557 + ... + 1052612.

It is an arithmetic number, because the mean of its divisors is an integer number (78275124).

Almost surely, 2^1111001232 is an apocalyptic number.

1111001232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1111001232 is an abundant number, since it is smaller than the sum of its proper divisors (2020003728).

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

1111001232 is a wasteful number, since it uses less digits than its factorization.

1111001232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2104191 (or 2104185 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 1111001232 is about 33331.6851059169. The cubic root of 1111001232 is about 1035.7100255312.

Adding to 1111001232 its reverse (2321001111), we get a palindrome (3432002343).

The spelling of 1111001232 in words is "one billion, one hundred eleven million, one thousand, two hundred thirty-two".