1321032112 has 10 divisors (see below), whose sum is σ = 2559499748. Its totient is φ = 660516048.

The previous prime is 1321032103. The next prime is 1321032137. The reversal of 1321032112 is 2112301231.

It is a Harshad number since it is a multiple of its sum of digits (16), and also a Moran number because the ratio is a prime number: 82564507 = 1321032112 / (1 + 3 + 2 + 1 + 0 + 3 + 2 + 1 + 1 + 2).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41282238 + ... + 41282269.

Almost surely, 2^1321032112 is an apocalyptic number.

It is an amenable number.

1321032112 is a deficient number, since it is larger than the sum of its proper divisors (1238467636).

1321032112 is an equidigital number, since it uses as much as digits as its factorization.

1321032112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82564515 (or 82564509 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1321032112 is about 36346.0054476417. The cubic root of 1321032112 is about 1097.2471417929.

Adding to 1321032112 its reverse (2112301231), we get a palindrome (3433333343).

The spelling of 1321032112 in words is "one billion, three hundred twenty-one million, thirty-two thousand, one hundred twelve".