1321112113 has 8 divisors (see below), whose sum is σ = 1329722240. Its totient is φ = 1312528320.

The previous prime is 1321112083. The next prime is 1321112131. The reversal of 1321112113 is 3112111231.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1321112113 - 2⁹ = 1321111601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1321112153) 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, 99556 + ... + 112042.

It is an arithmetic number, because the mean of its divisors is an integer number (166215280).

Almost surely, 2^1321112113 is an apocalyptic number.

It is an amenable number.

1321112113 is a deficient number, since it is larger than the sum of its proper divisors (8610127).

1321112113 is a wasteful number, since it uses less digits than its factorization.

1321112113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13167.

The product of its digits is 36, while the sum is 16.

The square root of 1321112113 is about 36347.1059783307. The cubic root of 1321112113 is about 1097.2692909130.

Adding to 1321112113 its reverse (3112111231), we get a palindrome (4433223344).

The spelling of 1321112113 in words is "one billion, three hundred twenty-one million, one hundred twelve thousand, one hundred thirteen".