20111012002 has 8 divisors (see below), whose sum is σ = 31941019116. Its totient is φ = 9464005632.

The previous prime is 20111011933. The next prime is 20111012011. The reversal of 20111012002 is 20021011102.

It can be written as a sum of positive squares in 2 ways, for example, as 19787767561 + 323244441 = 140669^2 + 17979^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 20111012002.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 295750143 + ... + 295750210.

Almost surely, 2^20111012002 is an apocalyptic number.

20111012002 is a deficient number, since it is larger than the sum of its proper divisors (11830007114).

20111012002 is a wasteful number, since it uses less digits than its factorization.

20111012002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591500372.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20111012002 its reverse (20021011102), we get a palindrome (40132023104).

The spelling of 20111012002 in words is "twenty billion, one hundred eleven million, twelve thousand, two".