20413033421 has 8 divisors (see below), whose sum is σ = 22273773984. Its totient is φ = 18553127920.

The previous prime is 20413033409. The next prime is 20413033427. The reversal of 20413033421 is 12433031402.

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

It is a cyclic number.

It is not a de Polignac number, because 20413033421 - 2¹⁰ = 20413032397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20413033427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157091 + ... + 255936.

It is an arithmetic number, because the mean of its divisors is an integer number (2784221748).

Almost surely, 2^20413033421 is an apocalyptic number.

It is an amenable number.

20413033421 is a deficient number, since it is larger than the sum of its proper divisors (1860740563).

20413033421 is a wasteful number, since it uses less digits than its factorization.

20413033421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417531.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 20413033421 its reverse (12433031402), we get a palindrome (32846064823).

The spelling of 20413033421 in words is "twenty billion, four hundred thirteen million, thirty-three thousand, four hundred twenty-one".