1321112333003 has 4 divisors (see below), whose sum is σ = 1321675229400. Its totient is φ = 1320549436608.

The previous prime is 1321112332979. The next prime is 1321112333011. The reversal of 1321112333003 is 3003332111231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1321112333003 - 2²⁸ = 1320843897547 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1321112333003.

It is not an unprimeable number, because it can be changed into a prime (1321112333803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 281444678 + ... + 281449371.

It is an arithmetic number, because the mean of its divisors is an integer number (330418807350).

Almost surely, 2^{1321112333003} is an apocalyptic number.

1321112333003 is a deficient number, since it is larger than the sum of its proper divisors (562896397).

1321112333003 is an equidigital number, since it uses as much as digits as its factorization.

1321112333003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562896396.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 1321112333003 its reverse (3003332111231), we get a palindrome (4324444444234).

The spelling of 1321112333003 in words is "one trillion, three hundred twenty-one billion, one hundred twelve million, three hundred thirty-three thousand, three".