20003124340 has 24 divisors (see below), whose sum is σ = 42049863072. Its totient is φ = 7993001760.

The previous prime is 20003124277. The next prime is 20003124343. The reversal of 20003124340 is 4342130002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20003124343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 495594 + ... + 534433.

It is an arithmetic number, because the mean of its divisors is an integer number (1752077628).

Almost surely, 2^20003124340 is an apocalyptic number.

20003124340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20003124340 is an abundant number, since it is smaller than the sum of its proper divisors (22046738732).

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

20003124340 is a wasteful number, since it uses less digits than its factorization.

20003124340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031007 (or 1031005 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 20003124340 its reverse (4342130002), we get a palindrome (24345254342).

The spelling of 20003124340 in words is "twenty billion, three million, one hundred twenty-four thousand, three hundred forty".