1021322023 has 4 divisors (see below), whose sum is σ = 1021975360. Its totient is φ = 1020668688.

The previous prime is 1021322017. The next prime is 1021322047. The reversal of 1021322023 is 3202231201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1021322023 - 2¹³ = 1021313831 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1021321988 and 1021322006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021322083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324318 + ... + 327451.

It is an arithmetic number, because the mean of its divisors is an integer number (255493840).

Almost surely, 2^1021322023 is an apocalyptic number.

1021322023 is a deficient number, since it is larger than the sum of its proper divisors (653337).

1021322023 is an equidigital number, since it uses as much as digits as its factorization.

1021322023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653336.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1021322023 is about 31958.1292162104. The cubic root of 1021322023 is about 1007.0574166996.

Adding to 1021322023 its reverse (3202231201), we get a palindrome (4223553224).

The spelling of 1021322023 in words is "one billion, twenty-one million, three hundred twenty-two thousand, twenty-three".