20444134102431 has 16 divisors (see below), whose sum is σ = 29646330036960. Its totient is φ = 12456441187200.

The previous prime is 20444134102367. The next prime is 20444134102433. The reversal of 20444134102431 is 13420143144402.

It is a happy number.

It is not a de Polignac number, because 20444134102431 - 2⁶ = 20444134102367 is a prime.

It is a super-2 number, since 2×20444134102431² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20444134102392 and 20444134102401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20444134102433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2595087976 + ... + 2595095853.

It is an arithmetic number, because the mean of its divisors is an integer number (1852895627310).

Almost surely, 2^{20444134102431} is an apocalyptic number.

20444134102431 is a deficient number, since it is larger than the sum of its proper divisors (9202195934529).

20444134102431 is a wasteful number, since it uses less digits than its factorization.

20444134102431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5190183946.

The product of its (nonzero) digits is 36864, while the sum is 33.

Adding to 20444134102431 its reverse (13420143144402), we get a palindrome (33864277246833).

The spelling of 20444134102431 in words is "twenty trillion, four hundred forty-four billion, one hundred thirty-four million, one hundred two thousand, four hundred thirty-one".