12331021112 has 8 divisors (see below), whose sum is σ = 23120664600. Its totient is φ = 6165510552.

The previous prime is 12331021103. The next prime is 12331021121. The reversal of 12331021112 is 21112013321.

It is an interprime number because it is at equal distance from previous prime (12331021103) and next prime (12331021121).

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 polite number, since it can be written as a sum of consecutive naturals, namely, 770688812 + ... + 770688827.

It is an arithmetic number, because the mean of its divisors is an integer number (2890083075).

Almost surely, 2^12331021112 is an apocalyptic number.

It is an amenable number.

12331021112 is a deficient number, since it is larger than the sum of its proper divisors (10789643488).

12331021112 is a wasteful number, since it uses less digits than its factorization.

12331021112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1541377645 (or 1541377641 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 12331021112 its reverse (21112013321), we get a palindrome (33443034433).

The spelling of 12331021112 in words is "twelve billion, three hundred thirty-one million, twenty-one thousand, one hundred twelve".