20231413 has 4 divisors (see below), whose sum is σ = 20241900. Its totient is φ = 20220928.

The previous prime is 20231401. The next prime is 20231417. The reversal of 20231413 is 31413202.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 19554084 + 677329 = 4422^2 + 823^2 .

It is a cyclic number.

It is not a de Polignac number, because 20231413 - 2¹³ = 20223221 is a prime.

It is a super-3 number, since 3×20231413³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20231417) 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, 1420 + ... + 6517.

It is an arithmetic number, because the mean of its divisors is an integer number (5060475).

Almost surely, 2^20231413 is an apocalyptic number.

It is an amenable number.

20231413 is a deficient number, since it is larger than the sum of its proper divisors (10487).

20231413 is an equidigital number, since it uses as much as digits as its factorization.

20231413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10486.

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

The square root of 20231413 is about 4497.9343036554. The cubic root of 20231413 is about 272.4846687781.

Adding to 20231413 its reverse (31413202), we get a palindrome (51644615).

The spelling of 20231413 in words is "twenty million, two hundred thirty-one thousand, four hundred thirteen".