1220543442023 has 2 divisors, whose sum is σ = 1220543442024. Its totient is φ = 1220543442022.

The previous prime is 1220543441983. The next prime is 1220543442029. The reversal of 1220543442023 is 3202443450221.

It is a strong prime.

It is an emirp because it is prime and its reverse (3202443450221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1220543442023 - 2³⁰ = 1219469700199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220543442029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610271721011 + 610271721012.

It is an arithmetic number, because the mean of its divisors is an integer number (610271721012).

Almost surely, 2^{1220543442023} is an apocalyptic number.

1220543442023 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220543442023 is an equidigital number, since it uses as much as digits as its factorization.

1220543442023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46080, while the sum is 32.

Adding to 1220543442023 its reverse (3202443450221), we get a palindrome (4422986892244).

The spelling of 1220543442023 in words is "one trillion, two hundred twenty billion, five hundred forty-three million, four hundred forty-two thousand, twenty-three".