20334030431 has 16 divisors (see below), whose sum is σ = 23904121248. Its totient is φ = 17052672000.

The previous prime is 20334030391. The next prime is 20334030443. The reversal of 20334030431 is 13403043302.

It is a de Polignac number, because none of the positive numbers 2^k-20334030431 is a prime.

It is a super-2 number, since 2×20334030431² (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 = 20334030397 and 20334030406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20334030481) 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 15 ways as a sum of consecutive naturals, for example, 184535 + ... + 273351.

It is an arithmetic number, because the mean of its divisors is an integer number (1494007578).

Almost surely, 2^20334030431 is an apocalyptic number.

20334030431 is a deficient number, since it is larger than the sum of its proper divisors (3570090817).

20334030431 is a wasteful number, since it uses less digits than its factorization.

20334030431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90442.

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 20334030431 its reverse (13403043302), we get a palindrome (33737073733).

The spelling of 20334030431 in words is "twenty billion, three hundred thirty-four million, thirty thousand, four hundred thirty-one".