20244123231413 has 8 divisors (see below), whose sum is σ = 21124464130368. Its totient is φ = 19363795801504.

The previous prime is 20244123231221. The next prime is 20244123231523. The reversal of 20244123231413 is 31413232144202.

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 a de Polignac number, because none of the positive numbers 2^k-20244123231413 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20244123231413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20244123233413) 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, 233831 + ... + 6367332.

It is an arithmetic number, because the mean of its divisors is an integer number (2640558016296).

Almost surely, 2^{20244123231413} is an apocalyptic number.

20244123231413 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20244123231413 is a deficient number, since it is larger than the sum of its proper divisors (880340898955).

20244123231413 is a wasteful number, since it uses less digits than its factorization.

20244123231413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6734523.

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 20244123231413 its reverse (31413232144202), we get a palindrome (51657355375615).

The spelling of 20244123231413 in words is "twenty trillion, two hundred forty-four billion, one hundred twenty-three million, two hundred thirty-one thousand, four hundred thirteen".