1321130001223 has 2 divisors, whose sum is σ = 1321130001224. Its totient is φ = 1321130001222.

The previous prime is 1321130001181. The next prime is 1321130001239. The reversal of 1321130001223 is 3221000311231.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1321130001223 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1321130001223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1321130001263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660565000611 + 660565000612.

It is an arithmetic number, because the mean of its divisors is an integer number (660565000612).

Almost surely, 2^{1321130001223} is an apocalyptic number.

1321130001223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1321130001223 is an equidigital number, since it uses as much as digits as its factorization.

1321130001223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1321130001223 its reverse (3221000311231), we get a palindrome (4542130312454).

The spelling of 1321130001223 in words is "one trillion, three hundred twenty-one billion, one hundred thirty million, one thousand, two hundred twenty-three".