20131442401431 has 8 divisors (see below), whose sum is σ = 26850059596800. Its totient is φ = 13416893403512.

The previous prime is 20131442401379. The next prime is 20131442401531. The reversal of 20131442401431 is 13410424413102.

It is a happy number.

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 20131442401431 - 2²⁵ = 20131408846999 is a prime.

It is a super-2 number, since 2×20131442401431² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20131442401531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1017037815 + ... + 1017057608.

It is an arithmetic number, because the mean of its divisors is an integer number (3356257449600).

Almost surely, 2^{20131442401431} is an apocalyptic number.

20131442401431 is a deficient number, since it is larger than the sum of its proper divisors (6718617195369).

20131442401431 is a wasteful number, since it uses less digits than its factorization.

20131442401431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2034098725.

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 20131442401431 its reverse (13410424413102), we get a palindrome (33541866814533).

The spelling of 20131442401431 in words is "twenty trillion, one hundred thirty-one billion, four hundred forty-two million, four hundred one thousand, four hundred thirty-one".