20323214210421 has 40 divisors (see below), whose sum is σ = 30380335264224. Its totient is φ = 13539456231840.

The previous prime is 20323214210419. The next prime is 20323214210443. The reversal of 20323214210421 is 12401241232302.

20323214210421 is a `hidden beast` number, since 2 + 0 + 3 + 2 + 3 + 21 + 4 + 210 + 421 = 666.

It is not a de Polignac number, because 20323214210421 - 2¹ = 20323214210419 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20323214260421) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 800965291 + ... + 800990663.

Almost surely, 2^{20323214210421} is an apocalyptic number.

It is an amenable number.

20323214210421 is a deficient number, since it is larger than the sum of its proper divisors (10057121053803).

20323214210421 is a wasteful number, since it uses less digits than its factorization.

20323214210421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31823 (or 31814 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 20323214210421 its reverse (12401241232302), we get a palindrome (32724455442723).

The spelling of 20323214210421 in words is "twenty trillion, three hundred twenty-three billion, two hundred fourteen million, two hundred ten thousand, four hundred twenty-one".