1023132221 has 2 divisors, whose sum is σ = 1023132222. Its totient is φ = 1023132220.

The previous prime is 1023132211. The next prime is 1023132241. The reversal of 1023132221 is 1222313201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1015123321 + 8008900 = 31861^2 + 2830^2 .

It is a cyclic number.

It is not a de Polignac number, because 1023132221 - 2¹⁴ = 1023115837 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1023132221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1023132211) 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, 511566110 + 511566111.

It is an arithmetic number, because the mean of its divisors is an integer number (511566111).

Almost surely, 2^1023132221 is an apocalyptic number.

It is an amenable number.

1023132221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023132221 is an equidigital number, since it uses as much as digits as its factorization.

1023132221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1023132221 is about 31986.4380792860. The cubic root of 1023132221 is about 1007.6520373068.

Adding to 1023132221 its reverse (1222313201), we get a palindrome (2245445422).

The spelling of 1023132221 in words is "one billion, twenty-three million, one hundred thirty-two thousand, two hundred twenty-one".