11101002001988 has 24 divisors (see below), whose sum is σ = 21463829960832. Its totient is φ = 4996870465664.

The previous prime is 11101002001861. The next prime is 11101002002003. The reversal of 11101002001988 is 88910020010111.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3548912120 + ... + 3548915247.

It is an arithmetic number, because the mean of its divisors is an integer number (894326248368).

Almost surely, 2^{11101002001988} is an apocalyptic number.

It is an amenable number.

11101002001988 is a deficient number, since it is larger than the sum of its proper divisors (10362827958844).

11101002001988 is a wasteful number, since it uses less digits than its factorization.

11101002001988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7097827411 (or 7097827409 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 32.

The spelling of 11101002001988 in words is "eleven trillion, one hundred one billion, two million, one thousand, nine hundred eighty-eight".