20203413 has 8 divisors (see below), whose sum is σ = 27806976. Its totient is φ = 13034400.

The previous prime is 20203411. The next prime is 20203423. The reversal of 20203413 is 31430202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20203413 - 2¹ = 20203411 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20203392 and 20203401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20203411) 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, 108528 + ... + 108713.

It is an arithmetic number, because the mean of its divisors is an integer number (3475872).

Almost surely, 2^20203413 is an apocalyptic number.

It is an amenable number.

20203413 is a deficient number, since it is larger than the sum of its proper divisors (7603563).

20203413 is a wasteful number, since it uses less digits than its factorization.

20203413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217275.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 20203413 is about 4494.8206860786. The cubic root of 20203413 is about 272.3589057188.

Adding to 20203413 its reverse (31430202), we get a palindrome (51633615).

The spelling of 20203413 in words is "twenty million, two hundred three thousand, four hundred thirteen".