1131033212012 has 96 divisors (see below), whose sum is σ = 2300682230784. Its totient is φ = 481472640000.

The previous prime is 1131033211967. The next prime is 1131033212017. The reversal of 1131033212012 is 2102123301311.

It is a happy number.

It is a super-2 number, since 2×1131033212012² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1131033212017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10065137 + ... + 10176887.

It is an arithmetic number, because the mean of its divisors is an integer number (23965439904).

Almost surely, 2^{1131033212012} is an apocalyptic number.

It is an amenable number.

1131033212012 is an abundant number, since it is smaller than the sum of its proper divisors (1169649018772).

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

1131033212012 is a wasteful number, since it uses less digits than its factorization.

1131033212012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111999 (or 111997 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1131033212012 its reverse (2102123301311), we get a palindrome (3233156513323).

The spelling of 1131033212012 in words is "one trillion, one hundred thirty-one billion, thirty-three million, two hundred twelve thousand, twelve".