1233231111012 has 24 divisors (see below), whose sum is σ = 2883447977536. Its totient is φ = 410232934368.

The previous prime is 1233231110987. The next prime is 1233231111041. The reversal of 1233231111012 is 2101111323321.

It is a self number, because there is not a number n which added to its sum of digits gives 1233231111012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105506743 + ... + 105518430.

Almost surely, 2^{1233231111012} is an apocalyptic number.

1233231111012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1233231111012 is an abundant number, since it is smaller than the sum of its proper divisors (1650216866524).

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

1233231111012 is a wasteful number, since it uses less digits than its factorization.

1233231111012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211025667 (or 211025665 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 1233231111012 its reverse (2101111323321), we get a palindrome (3334342434333).

The spelling of 1233231111012 in words is "one trillion, two hundred thirty-three billion, two hundred thirty-one million, one hundred eleven thousand, twelve".