1023021247 has 2 divisors, whose sum is σ = 1023021248. Its totient is φ = 1023021246.

The previous prime is 1023021227. The next prime is 1023021253. The reversal of 1023021247 is 7421203201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1023021247 - 2¹⁵ = 1022988479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1023021227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511510623 + 511510624.

It is an arithmetic number, because the mean of its divisors is an integer number (511510624).

Almost surely, 2^1023021247 is an apocalyptic number.

1023021247 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023021247 is an equidigital number, since it uses as much as digits as its factorization.

1023021247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 1023021247 is about 31984.7033283099. The cubic root of 1023021247 is about 1007.6156043420.

Adding to 1023021247 its reverse (7421203201), we get a palindrome (8444224448).

The spelling of 1023021247 in words is "one billion, twenty-three million, twenty-one thousand, two hundred forty-seven".