11101111138850 has 24 divisors (see below), whose sum is σ = 20705582257920. Its totient is φ = 4428075522320.

The previous prime is 11101111138849. The next prime is 11101111138913. The reversal of 11101111138850 is 5883111110111.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 309205202 + ... + 309241101.

It is an arithmetic number, because the mean of its divisors is an integer number (862732594080).

Almost surely, 2^{11101111138850} is an apocalyptic number.

11101111138850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11101111138850 is a deficient number, since it is larger than the sum of its proper divisors (9604471119070).

11101111138850 is a wasteful number, since it uses less digits than its factorization.

11101111138850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618446674 (or 618446669 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 32.

Adding to 11101111138850 its reverse (5883111110111), we get a palindrome (16984222248961).

The spelling of 11101111138850 in words is "eleven trillion, one hundred one billion, one hundred eleven million, one hundred thirty-eight thousand, eight hundred fifty".