1023213 has 8 divisors (see below), whose sum is σ = 1444608. Its totient is φ = 641984.

The previous prime is 1023203. The next prime is 1023221. The reversal of 1023213 is 3123201.

It is a happy number.

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 1023213 - 2⁹ = 1022701 is a prime.

1023213 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023203) 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, 9981 + ... + 10082.

It is an arithmetic number, because the mean of its divisors is an integer number (180576).

2^1023213 is an apocalyptic number.

It is an amenable number.

1023213 is a deficient number, since it is larger than the sum of its proper divisors (421395).

1023213 is a wasteful number, since it uses less digits than its factorization.

1023213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20083.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 1023213 is about 1011.5399151788. The cubic root of 1023213 is about 100.7678555542.

Subtracting from 1023213 its sum of digits (12), we obtain a palindrome (1023201).

Adding to 1023213 its reverse (3123201), we get a palindrome (4146414).

The spelling of 1023213 in words is "one million, twenty-three thousand, two hundred thirteen".