20142224431 has 8 divisors (see below), whose sum is σ = 23243177984. Its totient is φ = 17097144120.

The previous prime is 20142224429. The next prime is 20142224471. The reversal of 20142224431 is 13442224102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20142224431 - 2¹ = 20142224429 is a prime.

It is a super-2 number, since 2×20142224431² (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 = 20142224396 and 20142224405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20142224471) 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 7 ways as a sum of consecutive naturals, for example, 13967535 + ... + 13968976.

It is an arithmetic number, because the mean of its divisors is an integer number (2905397248).

Almost surely, 2^20142224431 is an apocalyptic number.

20142224431 is a deficient number, since it is larger than the sum of its proper divisors (3100953553).

20142224431 is a wasteful number, since it uses less digits than its factorization.

20142224431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27936621.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 20142224431 its reverse (13442224102), we get a palindrome (33584448533).

The spelling of 20142224431 in words is "twenty billion, one hundred forty-two million, two hundred twenty-four thousand, four hundred thirty-one".