20231013 has 8 divisors (see below), whose sum is σ = 29426976. Its totient is φ = 12261200.

The previous prime is 20231011. The next prime is 20231017. The reversal of 20231013 is 31013202.

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 20231013 - 2¹ = 20231011 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20231013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20231011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306498 + ... + 306563.

It is an arithmetic number, because the mean of its divisors is an integer number (3678372).

Almost surely, 2^20231013 is an apocalyptic number.

It is an amenable number.

20231013 is a deficient number, since it is larger than the sum of its proper divisors (9195963).

20231013 is a wasteful number, since it uses less digits than its factorization.

20231013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613075.

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

The square root of 20231013 is about 4497.8898385799. The cubic root of 20231013 is about 272.4828729802.

Adding to 20231013 its reverse (31013202), we get a palindrome (51244215).

It can be divided in two parts, 202 and 31013, that multiplied together give a palindrome (6264626).

The spelling of 20231013 in words is "twenty million, two hundred thirty-one thousand, thirteen".