1221030323003 has 2 divisors, whose sum is σ = 1221030323004. Its totient is φ = 1221030323002.

The previous prime is 1221030322997. The next prime is 1221030323021. The reversal of 1221030323003 is 3003230301221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1221030323003 - 2²⁰ = 1221029274427 is a prime.

It is not a weakly prime, because it can be changed into another prime (1221030323503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610515161501 + 610515161502.

It is an arithmetic number, because the mean of its divisors is an integer number (610515161502).

Almost surely, 2^{1221030323003} is an apocalyptic number.

1221030323003 is a deficient number, since it is larger than the sum of its proper divisors (1).

1221030323003 is an equidigital number, since it uses as much as digits as its factorization.

1221030323003 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 20.

Adding to 1221030323003 its reverse (3003230301221), we get a palindrome (4224260624224).

The spelling of 1221030323003 in words is "one trillion, two hundred twenty-one billion, thirty million, three hundred twenty-three thousand, three".