20632173124 has 6 divisors (see below), whose sum is σ = 36106302974. Its totient is φ = 10316086560.

The previous prime is 20632173119. The next prime is 20632173151. The reversal of 20632173124 is 42137123602.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 17011984900 + 3620188224 = 130430^2 + 60168^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2579021637 + ... + 2579021644.

Almost surely, 2^20632173124 is an apocalyptic number.

It is an amenable number.

20632173124 is a deficient number, since it is larger than the sum of its proper divisors (15474129850).

20632173124 is a wasteful number, since it uses less digits than its factorization.

20632173124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5158043285 (or 5158043283 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

Adding to 20632173124 its reverse (42137123602), we get a palindrome (62769296726).

The spelling of 20632173124 in words is "twenty billion, six hundred thirty-two million, one hundred seventy-three thousand, one hundred twenty-four".