1213321010323 has 2 divisors, whose sum is σ = 1213321010324. Its totient is φ = 1213321010322.

The previous prime is 1213321010281. The next prime is 1213321010347. The reversal of 1213321010323 is 3230101233121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1213321010323 - 2²¹ = 1213318913171 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1213321010294 and 1213321010303.

It is not a weakly prime, because it can be changed into another prime (1213321050323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606660505161 + 606660505162.

It is an arithmetic number, because the mean of its divisors is an integer number (606660505162).

Almost surely, 2^{1213321010323} is an apocalyptic number.

1213321010323 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213321010323 is an equidigital number, since it uses as much as digits as its factorization.

1213321010323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1213321010323 its reverse (3230101233121), we get a palindrome (4443422243444).

The spelling of 1213321010323 in words is "one trillion, two hundred thirteen billion, three hundred twenty-one million, ten thousand, three hundred twenty-three".