20214204431 has 4 divisors (see below), whose sum is σ = 20217749664. Its totient is φ = 20210659200.

The previous prime is 20214204407. The next prime is 20214204449. The reversal of 20214204431 is 13440241202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20214204431 - 2²⁶ = 20147095567 is a prime.

It is a super-2 number, since 2×20214204431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20214204397 and 20214204406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20214200431) 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, 1764050 + ... + 1775471.

It is an arithmetic number, because the mean of its divisors is an integer number (5054437416).

Almost surely, 2^20214204431 is an apocalyptic number.

20214204431 is a deficient number, since it is larger than the sum of its proper divisors (3545233).

20214204431 is an equidigital number, since it uses as much as digits as its factorization.

20214204431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3545232.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 20214204431 its reverse (13440241202), we get a palindrome (33654445633).

The spelling of 20214204431 in words is "twenty billion, two hundred fourteen million, two hundred four thousand, four hundred thirty-one".