1021223073 has 16 divisors (see below), whose sum is σ = 1467982656. Its totient is φ = 627754560.

The previous prime is 1021223053. The next prime is 1021223083. The reversal of 1021223073 is 3703221201.

1021223073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1021223073 - 2¹⁶ = 1021157537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1021223053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22786 + ... + 50612.

It is an arithmetic number, because the mean of its divisors is an integer number (91748916).

Almost surely, 2^1021223073 is an apocalyptic number.

1021223073 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1021223073 is a deficient number, since it is larger than the sum of its proper divisors (446759583).

1021223073 is a wasteful number, since it uses less digits than its factorization.

1021223073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28784.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 1021223073 is about 31956.5810593061. The cubic root of 1021223073 is about 1007.0248929877.

Adding to 1021223073 its reverse (3703221201), we get a palindrome (4724444274).

The spelling of 1021223073 in words is "one billion, twenty-one million, two hundred twenty-three thousand, seventy-three".