1022023213 has 8 divisors (see below), whose sum is σ = 1050554232. Its totient is φ = 993540096.

The previous prime is 1022023207. The next prime is 1022023231. The reversal of 1022023213 is 3123202201.

It can be written as a sum of positive squares in 4 ways, for example, as 28323684 + 993699529 = 5322^2 + 31523^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1022023213 - 2¹⁷ = 1021892141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022023253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33681 + ... + 56377.

It is an arithmetic number, because the mean of its divisors is an integer number (131319279).

Almost surely, 2^1022023213 is an apocalyptic number.

It is an amenable number.

1022023213 is a deficient number, since it is larger than the sum of its proper divisors (28531019).

1022023213 is a wasteful number, since it uses less digits than its factorization.

1022023213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23951.

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

The square root of 1022023213 is about 31969.0977820770. The cubic root of 1022023213 is about 1007.2878295161.

Adding to 1022023213 its reverse (3123202201), we get a palindrome (4145225414).

It can be divided in two parts, 10220 and 23213, that added together give a palindrome (33433).

The spelling of 1022023213 in words is "one billion, twenty-two million, twenty-three thousand, two hundred thirteen".