20124104242 has 16 divisors (see below), whose sum is σ = 34362107712. Its totient is φ = 8749610320.

The previous prime is 20124104227. The next prime is 20124104261. The reversal of 20124104242 is 24240142102.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 19884973 + ... + 19885984.

It is an arithmetic number, because the mean of its divisors is an integer number (2147631732).

Almost surely, 2^20124104242 is an apocalyptic number.

20124104242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20124104242 is a deficient number, since it is larger than the sum of its proper divisors (14238003470).

20124104242 is a wasteful number, since it uses less digits than its factorization.

20124104242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39770993.

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

Adding to 20124104242 its reverse (24240142102), we get a palindrome (44364246344).

The spelling of 20124104242 in words is "twenty billion, one hundred twenty-four million, one hundred four thousand, two hundred forty-two".