1020202231 has 2 divisors, whose sum is σ = 1020202232. Its totient is φ = 1020202230.

The previous prime is 1020202213. The next prime is 1020202259. The reversal of 1020202231 is 1322020201.

Together with previous prime (1020202213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1020202231 - 2⁹ = 1020201719 is a prime.

It is a super-2 number, since 2×1020202231² = 2081625184274754722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020202201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510101115 + 510101116.

It is an arithmetic number, because the mean of its divisors is an integer number (510101116).

Almost surely, 2^1020202231 is an apocalyptic number.

1020202231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020202231 is an equidigital number, since it uses as much as digits as its factorization.

1020202231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1020202231 is about 31940.6047375437. The cubic root of 1020202231 is about 1006.6892314114.

Adding to 1020202231 its reverse (1322020201), we get a palindrome (2342222432).

The spelling of 1020202231 in words is "one billion, twenty million, two hundred two thousand, two hundred thirty-one".