1023221043 has 24 divisors (see below), whose sum is σ = 1593686640. Its totient is φ = 628879680.

The previous prime is 1023221029. The next prime is 1023221099. The reversal of 1023221043 is 3401223201.

It is not a de Polignac number, because 1023221043 - 2¹⁸ = 1022958899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1023222043) 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 in 23 ways as a sum of consecutive naturals, for example, 95413 + ... + 105593.

It is an arithmetic number, because the mean of its divisors is an integer number (66403610).

Almost surely, 2^1023221043 is an apocalyptic number.

1023221043 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1023221043 is a deficient number, since it is larger than the sum of its proper divisors (570465597).

1023221043 is a wasteful number, since it uses less digits than its factorization.

1023221043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11059 (or 11056 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1023221043 is about 31987.8264813351. The cubic root of 1023221043 is about 1007.6811958318.

Adding to 1023221043 its reverse (3401223201), we get a palindrome (4424444244).

The spelling of 1023221043 in words is "one billion, twenty-three million, two hundred twenty-one thousand, forty-three".