20313413 has 4 divisors (see below), whose sum is σ = 21382560. Its totient is φ = 19244268.

The previous prime is 20313389. The next prime is 20313421. The reversal of 20313413 is 31431302.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20313413 - 2¹⁴ = 20297029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20313391 and 20313400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20313473) 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, 534545 + ... + 534582.

It is an arithmetic number, because the mean of its divisors is an integer number (5345640).

Almost surely, 2^20313413 is an apocalyptic number.

It is an amenable number.

20313413 is a deficient number, since it is larger than the sum of its proper divisors (1069147).

20313413 is a wasteful number, since it uses less digits than its factorization.

20313413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069146.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 20313413 is about 4507.0403814477. The cubic root of 20313413 is about 272.8523086700.

Adding to 20313413 its reverse (31431302), we get a palindrome (51744715).

The spelling of 20313413 in words is "twenty million, three hundred thirteen thousand, four hundred thirteen".