20401124244 has 48 divisors (see below), whose sum is σ = 50491336896. Its totient is φ = 6389107200.

The previous prime is 20401124213. The next prime is 20401124257. The reversal of 20401124244 is 44242110402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28914 + ... + 204054.

It is an arithmetic number, because the mean of its divisors is an integer number (1051902852).

Almost surely, 2^20401124244 is an apocalyptic number.

It is an amenable number.

20401124244 is an abundant number, since it is smaller than the sum of its proper divisors (30090212652).

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

20401124244 is a wasteful number, since it uses less digits than its factorization.

20401124244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175736 (or 175734 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 20401124244 its reverse (44242110402), we get a palindrome (64643234646).

The spelling of 20401124244 in words is "twenty billion, four hundred one million, one hundred twenty-four thousand, two hundred forty-four".