20012413 has 4 divisors (see below), whose sum is σ = 20189628. Its totient is φ = 19835200.

The previous prime is 20012411. The next prime is 20012423. The reversal of 20012413 is 31421002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31421002 = 2 ⋅15710501.

It can be written as a sum of positive squares in 2 ways, for example, as 1582564 + 18429849 = 1258^2 + 4293^2 .

It is a cyclic number.

It is not a de Polignac number, because 20012413 - 2¹ = 20012411 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20012393 and 20012402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20012411) 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, 88438 + ... + 88663.

It is an arithmetic number, because the mean of its divisors is an integer number (5047407).

Almost surely, 2^20012413 is an apocalyptic number.

It is an amenable number.

20012413 is a deficient number, since it is larger than the sum of its proper divisors (177215).

20012413 is a wasteful number, since it uses less digits than its factorization.

20012413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177214.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 20012413 is about 4473.5235553197. The cubic root of 20012413 is about 271.4979068221.

Adding to 20012413 its reverse (31421002), we get a palindrome (51433415).

The spelling of 20012413 in words is "twenty million, twelve thousand, four hundred thirteen".