1023020231 has 2 divisors, whose sum is σ = 1023020232. Its totient is φ = 1023020230.

The previous prime is 1023020227. The next prime is 1023020281. The reversal of 1023020231 is 1320203201.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1023020231 - 2² = 1023020227 is a prime.

It is a super-2 number, since 2×1023020231² = 2093140786070586722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1023020221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511510115 + 511510116.

It is an arithmetic number, because the mean of its divisors is an integer number (511510116).

Almost surely, 2^1023020231 is an apocalyptic number.

1023020231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023020231 is an equidigital number, since it uses as much as digits as its factorization.

1023020231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1023020231 is about 31984.6874457138. The cubic root of 1023020231 is about 1007.6152707752.

Adding to 1023020231 its reverse (1320203201), we get a palindrome (2343223432).

The spelling of 1023020231 in words is "one billion, twenty-three million, twenty thousand, two hundred thirty-one".