1231132233112 has 8 divisors (see below), whose sum is σ = 2308372937100. Its totient is φ = 615566116552.

The previous prime is 1231132233109. The next prime is 1231132233161. The reversal of 1231132233112 is 2113322311321.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

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 as a sum of consecutive naturals, namely, 76945764562 + ... + 76945764577.

Almost surely, 2^{1231132233112} is an apocalyptic number.

It is an amenable number.

1231132233112 is a deficient number, since it is larger than the sum of its proper divisors (1077240703988).

1231132233112 is a wasteful number, since it uses less digits than its factorization.

1231132233112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153891529145 (or 153891529141 counting only the distinct ones).

The product of its digits is 1296, while the sum is 25.

Adding to 1231132233112 its reverse (2113322311321), we get a palindrome (3344454544433).

It can be divided in two parts, 123113 and 2233112, that added together give a square (2356225 = 1535²).

The spelling of 1231132233112 in words is "one trillion, two hundred thirty-one billion, one hundred thirty-two million, two hundred thirty-three thousand, one hundred twelve".