1112131221321 has 8 divisors (see below), whose sum is σ = 1483217713600. Its totient is φ = 741232771632.

The previous prime is 1112131221307. The next prime is 1112131221343. The reversal of 1112131221321 is 1231221312111.

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

It is not a de Polignac number, because 1112131221321 - 2¹³ = 1112131213129 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1112131221371) 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, 46996846 + ... + 47020503.

It is an arithmetic number, because the mean of its divisors is an integer number (185402214200).

Almost surely, 2^{1112131221321} is an apocalyptic number.

It is an amenable number.

1112131221321 is a deficient number, since it is larger than the sum of its proper divisors (371086492279).

1112131221321 is an equidigital number, since it uses as much as digits as its factorization.

1112131221321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94021295.

The product of its digits is 144, while the sum is 21.

Adding to 1112131221321 its reverse (1231221312111), we get a palindrome (2343352533432).

The spelling of 1112131221321 in words is "one trillion, one hundred twelve billion, one hundred thirty-one million, two hundred twenty-one thousand, three hundred twenty-one".