1220420430023 has 2 divisors, whose sum is σ = 1220420430024. Its totient is φ = 1220420430022.

The previous prime is 1220420429957. The next prime is 1220420430077. The reversal of 1220420430023 is 3200340240221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1220420430023 - 2³⁰ = 1219346688199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220420450023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610210215011 + 610210215012.

It is an arithmetic number, because the mean of its divisors is an integer number (610210215012).

Almost surely, 2^{1220420430023} is an apocalyptic number.

1220420430023 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220420430023 is an equidigital number, since it uses as much as digits as its factorization.

1220420430023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 1220420430023 its reverse (3200340240221), we get a palindrome (4420760670244).

The spelling of 1220420430023 in words is "one trillion, two hundred twenty billion, four hundred twenty million, four hundred thirty thousand, twenty-three".