20424124132 has 6 divisors (see below), whose sum is σ = 35742217238. Its totient is φ = 10212062064.

The previous prime is 20424124099. The next prime is 20424124141. The reversal of 20424124132 is 23142142402.

It can be written as a sum of positive squares in only one way, i.e., 20148099136 + 276024996 = 141944^2 + 16614^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20424124097 and 20424124106.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2553015513 + ... + 2553015520.

Almost surely, 2^20424124132 is an apocalyptic number.

It is an amenable number.

20424124132 is a deficient number, since it is larger than the sum of its proper divisors (15318093106).

20424124132 is a wasteful number, since it uses less digits than its factorization.

20424124132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5106031037 (or 5106031035 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 20424124132 its reverse (23142142402), we get a palindrome (43566266534).

The spelling of 20424124132 in words is "twenty billion, four hundred twenty-four million, one hundred twenty-four thousand, one hundred thirty-two".