20124140052 has 24 divisors (see below), whose sum is σ = 47255416096. Its totient is φ = 6665319648.

The previous prime is 20124140041. The next prime is 20124140081. The reversal of 20124140052 is 25004142102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5338918 + ... + 5342685.

Almost surely, 2^20124140052 is an apocalyptic number.

It is an amenable number.

20124140052 is an abundant number, since it is smaller than the sum of its proper divisors (27131276044).

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

20124140052 is a wasteful number, since it uses less digits than its factorization.

20124140052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10681767 (or 10681765 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

Adding to 20124140052 its reverse (25004142102), we get a palindrome (45128282154).

The spelling of 20124140052 in words is "twenty billion, one hundred twenty-four million, one hundred forty thousand, fifty-two".