20030340413 has 4 divisors (see below), whose sum is σ = 20030631360. Its totient is φ = 20030049468.

The previous prime is 20030340373. The next prime is 20030340431. The reversal of 20030340413 is 31404303002.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20030340413 - 2¹⁸ = 20030078269 is a prime.

It is a super-2 number, since 2×20030340413² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20030340433) 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, 22268 + ... + 201386.

It is an arithmetic number, because the mean of its divisors is an integer number (5007657840).

Almost surely, 2^20030340413 is an apocalyptic number.

It is an amenable number.

20030340413 is a deficient number, since it is larger than the sum of its proper divisors (290947).

20030340413 is a wasteful number, since it uses less digits than its factorization.

20030340413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290946.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 20030340413 its reverse (31404303002), we get a palindrome (51434643415).

The spelling of 20030340413 in words is "twenty billion, thirty million, three hundred forty thousand, four hundred thirteen".