1321212443303 has 8 divisors (see below), whose sum is σ = 1349616707328. Its totient is φ = 1292820402744.

The previous prime is 1321212443267. The next prime is 1321212443329. The reversal of 1321212443303 is 3033442121231.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1321212443303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321212443333) 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, 2837201 + ... + 3269882.

It is an arithmetic number, because the mean of its divisors is an integer number (168702088416).

Almost surely, 2^{1321212443303} is an apocalyptic number.

1321212443303 is a deficient number, since it is larger than the sum of its proper divisors (28404264025).

1321212443303 is an equidigital number, since it uses as much as digits as its factorization.

1321212443303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6111733.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 1321212443303 its reverse (3033442121231), we get a palindrome (4354654564534).

The spelling of 1321212443303 in words is "one trillion, three hundred twenty-one billion, two hundred twelve million, four hundred forty-three thousand, three hundred three".