11331131031012 has 48 divisors (see below), whose sum is σ = 28475074745600. Its totient is φ = 3486259865088.

The previous prime is 11331131030981. The next prime is 11331131031023. The reversal of 11331131031012 is 21013013113311.

It is a self number, because there is not a number n which added to its sum of digits gives 11331131031012.

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, 259468 + ... + 4767555.

Almost surely, 2^{11331131031012} is an apocalyptic number.

11331131031012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11331131031012 is an abundant number, since it is smaller than the sum of its proper divisors (17143943714588).

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

11331131031012 is a wasteful number, since it uses less digits than its factorization.

11331131031012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5041492 (or 5041490 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 21.

Adding to 11331131031012 its reverse (21013013113311), we get a palindrome (32344144144323).

The spelling of 11331131031012 in words is "eleven trillion, three hundred thirty-one billion, one hundred thirty-one million, thirty-one thousand, twelve".