20124140403 has 32 divisors (see below), whose sum is σ = 27317187072. Its totient is φ = 13176576000.

The previous prime is 20124140383. The next prime is 20124140411. The reversal of 20124140403 is 30404142102.

It is not a de Polignac number, because 20124140403 - 2⁹ = 20124139891 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20124140403.

It is not an unprimeable number, because it can be changed into a prime (20124140423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16535251 + ... + 16536467.

It is an arithmetic number, because the mean of its divisors is an integer number (853662096).

Almost surely, 2^20124140403 is an apocalyptic number.

20124140403 is a deficient number, since it is larger than the sum of its proper divisors (7193046669).

20124140403 is a wasteful number, since it uses less digits than its factorization.

20124140403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1755.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 20124140403 its reverse (30404142102), we get a palindrome (50528282505).

The spelling of 20124140403 in words is "twenty billion, one hundred twenty-four million, one hundred forty thousand, four hundred three".