11100000021993 has 6 divisors (see below), whose sum is σ = 16033333365114. Its totient is φ = 7400000014656.

The previous prime is 11100000021991. The next prime is 11100000022043. The reversal of 11100000021993 is 39912000000111.

It can be written as a sum of positive squares in only one way, i.e., 6671950992144 + 4428049029849 = 2583012^2 + 2104293^2 .

It is not a de Polignac number, because 11100000021993 - 2¹ = 11100000021991 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11100000021991) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 616666667880 + ... + 616666667897.

It is an arithmetic number, because the mean of its divisors is an integer number (2672222227519).

Almost surely, 2^{11100000021993} is an apocalyptic number.

It is an amenable number.

11100000021993 is a deficient number, since it is larger than the sum of its proper divisors (4933333343121).

11100000021993 is a wasteful number, since it uses less digits than its factorization.

11100000021993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1233333335783 (or 1233333335780 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 27.

The spelling of 11100000021993 in words is "eleven trillion, one hundred billion, twenty-one thousand, nine hundred ninety-three".