20001344112453 has 8 divisors (see below), whose sum is σ = 29092864163616. Its totient is φ = 12122026734800.

The previous prime is 20001344112427. The next prime is 20001344112461. The reversal of 20001344112453 is 35421144310002.

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 20001344112453 - 2³⁰ = 20000270370629 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20001344112453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20001344112473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 303050668338 + ... + 303050668403.

It is an arithmetic number, because the mean of its divisors is an integer number (3636608020452).

Almost surely, 2^{20001344112453} is an apocalyptic number.

It is an amenable number.

20001344112453 is a deficient number, since it is larger than the sum of its proper divisors (9091520051163).

20001344112453 is a wasteful number, since it uses less digits than its factorization.

20001344112453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606101336755.

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 20001344112453 its reverse (35421144310002), we get a palindrome (55422488422455).

The spelling of 20001344112453 in words is "twenty trillion, one billion, three hundred forty-four million, one hundred twelve thousand, four hundred fifty-three".