20102144404 has 12 divisors (see below), whose sum is σ = 35447293728. Its totient is φ = 9974346200.

The previous prime is 20102144383. The next prime is 20102144407. The reversal of 20102144404 is 40444120102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20102144407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19180912 + ... + 19181959.

It is an arithmetic number, because the mean of its divisors is an integer number (2953941144).

Almost surely, 2^20102144404 is an apocalyptic number.

It is an amenable number.

20102144404 is a deficient number, since it is larger than the sum of its proper divisors (15345149324).

20102144404 is a wasteful number, since it uses less digits than its factorization.

20102144404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38363006 (or 38363004 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 20102144404 its reverse (40444120102), we get a palindrome (60546264506).

The spelling of 20102144404 in words is "twenty billion, one hundred two million, one hundred forty-four thousand, four hundred four".