1231112230012 has 48 divisors (see below), whose sum is σ = 2529336600000. Its totient is φ = 524078369472.

The previous prime is 1231112229961. The next prime is 1231112230039. The reversal of 1231112230012 is 2100322111321.

It is a super-3 number, since 3×1231112230012³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

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, 2806687 + ... + 3215542.

It is an arithmetic number, because the mean of its divisors is an integer number (52694512500).

Almost surely, 2^{1231112230012} is an apocalyptic number.

It is an amenable number.

1231112230012 is an abundant number, since it is smaller than the sum of its proper divisors (1298224369988).

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

1231112230012 is a wasteful number, since it uses less digits than its factorization.

1231112230012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6022403 (or 6022387 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1231112230012 its reverse (2100322111321), we get a palindrome (3331434341333).

The spelling of 1231112230012 in words is "one trillion, two hundred thirty-one billion, one hundred twelve million, two hundred thirty thousand, twelve".