220120040243 has 2 divisors, whose sum is σ = 220120040244. Its totient is φ = 220120040242.

The previous prime is 220120040221. The next prime is 220120040251. The reversal of 220120040243 is 342040021022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220120040243 - 2¹⁴ = 220120023859 is a prime.

It is not a weakly prime, because it can be changed into another prime (220120040743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110060020121 + 110060020122.

It is an arithmetic number, because the mean of its divisors is an integer number (110060020122).

Almost surely, 2^220120040243 is an apocalyptic number.

220120040243 is a deficient number, since it is larger than the sum of its proper divisors (1).

220120040243 is an equidigital number, since it uses as much as digits as its factorization.

220120040243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 220120040243 its reverse (342040021022), we get a palindrome (562160061265).

The spelling of 220120040243 in words is "two hundred twenty billion, one hundred twenty million, forty thousand, two hundred forty-three".