11000012011988 has 6 divisors (see below), whose sum is σ = 19250021020986. Its totient is φ = 5500006005992.

The previous prime is 11000012011969. The next prime is 11000012011999. The reversal of 11000012011988 is 88911021000011.

It can be written as a sum of positive squares in only one way, i.e., 10997036527684 + 2975484304 = 3316178^2 + 54548^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1375001501495 + ... + 1375001501502.

It is an arithmetic number, because the mean of its divisors is an integer number (3208336836831).

Almost surely, 2^{11000012011988} is an apocalyptic number.

It is an amenable number.

11000012011988 is a deficient number, since it is larger than the sum of its proper divisors (8250009008998).

11000012011988 is a wasteful number, since it uses less digits than its factorization.

11000012011988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2750003003001 (or 2750003002999 counting only the distinct ones).

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

Adding to 11000012011988 its reverse (88911021000011), we get a palindrome (99911033011999).

The spelling of 11000012011988 in words is "eleven trillion, twelve million, eleven thousand, nine hundred eighty-eight".