20011270032 has 120 divisors (see below), whose sum is σ = 61942005944. Its totient is φ = 5990879232.

The previous prime is 20011269989. The next prime is 20011270033. The reversal of 20011270032 is 23007211002.

It can be written as a sum of positive squares in 4 ways, for example, as 1059893136 + 18951376896 = 32556^2 + 137664^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20011269987 and 20011270014.

It is not an unprimeable number, because it can be changed into a prime (20011270033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75193 + ... + 213720.

Almost surely, 2^20011270032 is an apocalyptic number.

It is an amenable number.

20011270032 is an abundant number, since it is smaller than the sum of its proper divisors (41930735912).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20011270032 is a wasteful number, since it uses less digits than its factorization.

20011270032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288977 (or 288968 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

Adding to 20011270032 its reverse (23007211002), we get a palindrome (43018481034).

The spelling of 20011270032 in words is "twenty billion, eleven million, two hundred seventy thousand, thirty-two".