1131002112 has 72 divisors (see below), whose sum is σ = 3187217376. Its totient is φ = 354820096.

The previous prime is 1131002111. The next prime is 1131002149. The reversal of 1131002112 is 2112001311.

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 (1131002111) 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, 30258 + ... + 56369.

It is an arithmetic number, because the mean of its divisors is an integer number (44266908).

Almost surely, 2^1131002112 is an apocalyptic number.

1131002112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1131002112 is an abundant number, since it is smaller than the sum of its proper divisors (2056215264).

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

1131002112 is an equidigital number, since it uses as much as digits as its factorization.

1131002112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86663 (or 86649 counting only the distinct ones).

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

The square root of 1131002112 is about 33630.3748418004. The cubic root of 1131002112 is about 1041.8882461139. Note that the first 3 decimals are identical.

Adding to 1131002112 its reverse (2112001311), we get a palindrome (3243003423).

The spelling of 1131002112 in words is "one billion, one hundred thirty-one million, two thousand, one hundred twelve".