1023220073 has 2 divisors, whose sum is σ = 1023220074. Its totient is φ = 1023220072.

The previous prime is 1023220063. The next prime is 1023220097. The reversal of 1023220073 is 3700223201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 743761984 + 279458089 = 27272^2 + 16717^2 .

It is a cyclic number.

It is not a de Polignac number, because 1023220073 - 2¹⁴ = 1023203689 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1023220063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511610036 + 511610037.

It is an arithmetic number, because the mean of its divisors is an integer number (511610037).

Almost surely, 2^1023220073 is an apocalyptic number.

It is an amenable number.

1023220073 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023220073 is an equidigital number, since it uses as much as digits as its factorization.

1023220073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 1023220073 is about 31987.8113193135. The cubic root of 1023220073 is about 1007.6808774089.

Adding to 1023220073 its reverse (3700223201), we get a palindrome (4723443274).

The spelling of 1023220073 in words is "one billion, twenty-three million, two hundred twenty thousand, seventy-three".