20021103082 has 8 divisors (see below), whose sum is σ = 31798222596. Its totient is φ = 9421695552.

The previous prime is 20021103079. The next prime is 20021103083. The reversal of 20021103082 is 28030112002.

It can be written as a sum of positive squares in 2 ways, for example, as 18961014601 + 1060088481 = 137699^2 + 32559^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20021103083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 294427953 + ... + 294428020.

Almost surely, 2^20021103082 is an apocalyptic number.

20021103082 is a deficient number, since it is larger than the sum of its proper divisors (11777119514).

20021103082 is a wasteful number, since it uses less digits than its factorization.

20021103082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588855992.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 20021103082 its reverse (28030112002), we get a palindrome (48051215084).

The spelling of 20021103082 in words is "twenty billion, twenty-one million, one hundred three thousand, eighty-two".