20111100091010 has 8 divisors (see below), whose sum is σ = 36199980163836. Its totient is φ = 8044440036400.

The previous prime is 20111100091003. The next prime is 20111100091051. The reversal of 20111100091010 is 1019000111102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20050415217361 + 60684873649 = 4477769^2 + 246343^2 .

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 20111100091010.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1005555004541 + ... + 1005555004560.

Almost surely, 2^{20111100091010} is an apocalyptic number.

20111100091010 is a deficient number, since it is larger than the sum of its proper divisors (16088880072826).

20111100091010 is a wasteful number, since it uses less digits than its factorization.

20111100091010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2011110009108.

The product of its (nonzero) digits is 18, while the sum is 17.

The spelling of 20111100091010 in words is "twenty trillion, one hundred eleven billion, one hundred million, ninety-one thousand, ten".