20430441431 has 8 divisors (see below), whose sum is σ = 20898867024. Its totient is φ = 19965088000.

The previous prime is 20430441323. The next prime is 20430441461. The reversal of 20430441431 is 13414403402.

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 20430441431 - 2²⁶ = 20363332567 is a prime.

It is a super-2 number, since 2×20430441431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 20430441431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20430441461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 754586 + ... + 781191.

It is an arithmetic number, because the mean of its divisors is an integer number (2612358378).

Almost surely, 2^20430441431 is an apocalyptic number.

20430441431 is a deficient number, since it is larger than the sum of its proper divisors (468425593).

20430441431 is a wasteful number, since it uses less digits than its factorization.

20430441431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1536081.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 20430441431 its reverse (13414403402), we get a palindrome (33844844833).

The spelling of 20430441431 in words is "twenty billion, four hundred thirty million, four hundred forty-one thousand, four hundred thirty-one".