20101313044423 has 16 divisors (see below), whose sum is σ = 21771942242400. Its totient is φ = 18448484359680.

The previous prime is 20101313044409. The next prime is 20101313044471. The reversal of 20101313044423 is 32444031310102.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20101313044423 - 2⁵ = 20101313044391 is a prime.

It is a super-2 number, since 2×20101313044423² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20101313044391 and 20101313044400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20101313044823) 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, 14123043 + ... + 15481051.

It is an arithmetic number, because the mean of its divisors is an integer number (1360746390150).

Almost surely, 2^{20101313044423} is an apocalyptic number.

20101313044423 is a deficient number, since it is larger than the sum of its proper divisors (1670629197977).

20101313044423 is a wasteful number, since it uses less digits than its factorization.

20101313044423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1364562.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 20101313044423 its reverse (32444031310102), we get a palindrome (52545344354525).

The spelling of 20101313044423 in words is "twenty trillion, one hundred one billion, three hundred thirteen million, forty-four thousand, four hundred twenty-three".