20344244100133 has 16 divisors (see below), whose sum is σ = 21137142813696. Its totient is φ = 19567202117760.

The previous prime is 20344244100121. The next prime is 20344244100137. The reversal of 20344244100133 is 33100144244302.

It is a cyclic number.

It is not a de Polignac number, because 20344244100133 - 2¹⁷ = 20344243969061 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20344244100095 and 20344244100104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20344244100137) 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, 9859810 + ... + 11743267.

It is an arithmetic number, because the mean of its divisors is an integer number (1321071425856).

Almost surely, 2^{20344244100133} is an apocalyptic number.

It is an amenable number.

20344244100133 is a deficient number, since it is larger than the sum of its proper divisors (792898713563).

20344244100133 is a wasteful number, since it uses less digits than its factorization.

20344244100133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21603444.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 20344244100133 its reverse (33100144244302), we get a palindrome (53444388344435).

The spelling of 20344244100133 in words is "twenty trillion, three hundred forty-four billion, two hundred forty-four million, one hundred thousand, one hundred thirty-three".