20130233404444 has 48 divisors (see below), whose sum is σ = 37388589638400. Its totient is φ = 9450591250176.

The previous prime is 20130233404441. The next prime is 20130233404459. The reversal of 20130233404444 is 44440433203102.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20130233404441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 409634427 + ... + 409683565.

It is an arithmetic number, because the mean of its divisors is an integer number (778928950800).

Almost surely, 2^{20130233404444} is an apocalyptic number.

It is an amenable number.

20130233404444 is a deficient number, since it is larger than the sum of its proper divisors (17258356233956).

20130233404444 is a wasteful number, since it uses less digits than its factorization.

20130233404444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63322 (or 63320 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 34.

Adding to 20130233404444 its reverse (44440433203102), we get a palindrome (64570666607546).

The spelling of 20130233404444 in words is "twenty trillion, one hundred thirty billion, two hundred thirty-three million, four hundred four thousand, four hundred forty-four".