20423311001044 has 48 divisors (see below), whose sum is σ = 40916935382400. Its totient is φ = 8737782105600.

The previous prime is 20423311001017. The next prime is 20423311001047. The reversal of 20423311001044 is 44010011332402.

It is a super-2 number, since 2×20423311001044² (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 (20423311001047) 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 15 ways as a sum of consecutive naturals, for example, 583055859 + ... + 583090885.

It is an arithmetic number, because the mean of its divisors is an integer number (852436153800).

Almost surely, 2^{20423311001044} is an apocalyptic number.

It is an amenable number.

20423311001044 is an abundant number, since it is smaller than the sum of its proper divisors (20493624381356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20423311001044 is a wasteful number, since it uses less digits than its factorization.

20423311001044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70288 (or 70286 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 20423311001044 its reverse (44010011332402), we get a palindrome (64433322333446).

The spelling of 20423311001044 in words is "twenty trillion, four hundred twenty-three billion, three hundred eleven million, one thousand, forty-four".