20014436431 has 8 divisors (see below), whose sum is σ = 22298482944. Its totient is φ = 17807815320.

The previous prime is 20014436419. The next prime is 20014436443. The reversal of 20014436431 is 13463441002.

It is an interprime number because it is at equal distance from previous prime (20014436419) and next prime (20014436443).

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 20014436431 - 2³³ = 11424501839 is a prime.

It is a super-2 number, since 2×20014436431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20014436431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20014406431) 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, 19355805 + ... + 19356838.

It is an arithmetic number, because the mean of its divisors is an integer number (2787310368).

Almost surely, 2^20014436431 is an apocalyptic number.

20014436431 is a deficient number, since it is larger than the sum of its proper divisors (2284046513).

20014436431 is a wasteful number, since it uses less digits than its factorization.

20014436431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38712701.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 20014436431 its reverse (13463441002), we get a palindrome (33477877433).

The spelling of 20014436431 in words is "twenty billion, fourteen million, four hundred thirty-six thousand, four hundred thirty-one".