1012321112 has 32 divisors (see below), whose sum is σ = 2074349520. Its totient is φ = 459325440.

The previous prime is 1012321111. The next prime is 1012321127. The reversal of 1012321112 is 2111232101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012321111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40808 + ... + 60744.

Almost surely, 2^1012321112 is an apocalyptic number.

It is an amenable number.

1012321112 is an abundant number, since it is smaller than the sum of its proper divisors (1062028408).

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

1012321112 is a wasteful number, since it uses less digits than its factorization.

1012321112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20531 (or 20527 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 1012321112 is about 31816.9940754937. The cubic root of 1012321112 is about 1004.0902840986.

Adding to 1012321112 its reverse (2111232101), we get a palindrome (3123553213).

The spelling of 1012321112 in words is "one billion, twelve million, three hundred twenty-one thousand, one hundred twelve".