20406103124 has 12 divisors (see below), whose sum is σ = 38957106048. Its totient is φ = 9275501400.

The previous prime is 20406103111. The next prime is 20406103127. The reversal of 20406103124 is 42130160402.

It is a self number, because there is not a number n which added to its sum of digits gives 20406103124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20406103127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231887492 + ... + 231887579.

It is an arithmetic number, because the mean of its divisors is an integer number (3246425504).

Almost surely, 2^20406103124 is an apocalyptic number.

It is an amenable number.

20406103124 is a deficient number, since it is larger than the sum of its proper divisors (18551002924).

20406103124 is a wasteful number, since it uses less digits than its factorization.

20406103124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463775086 (or 463775084 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 20406103124 its reverse (42130160402), we get a palindrome (62536263526).

The spelling of 20406103124 in words is "twenty billion, four hundred six million, one hundred three thousand, one hundred twenty-four".