1213023 has 16 divisors (see below), whose sum is σ = 1889280. Its totient is φ = 677856.

The previous prime is 1213021. The next prime is 1213027. The reversal of 1213023 is 3203121.

It is a happy number.

It is not a de Polignac number, because 1213023 - 2¹ = 1213021 is a prime.

1213023 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213021) 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, 373 + ... + 1601.

It is an arithmetic number, because the mean of its divisors is an integer number (118080).

2^1213023 is an apocalyptic number.

1213023 is a deficient number, since it is larger than the sum of its proper divisors (676257).

1213023 is a wasteful number, since it uses less digits than its factorization.

1213023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1286.

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

The square root of 1213023 is about 1101.3732337405. The cubic root of 1213023 is about 106.6488913523.

Adding to 1213023 its reverse (3203121), we get a palindrome (4416144).

The spelling of 1213023 in words is "one million, two hundred thirteen thousand, twenty-three".