11111101012 has 24 divisors (see below), whose sum is σ = 21241664640. Its totient is φ = 5043461760.

The previous prime is 11111100997. The next prime is 11111101019. The reversal of 11111101012 is 21010111111.

It is a self number, because there is not a number n which added to its sum of digits gives 11111101012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111101019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143973 + ... + 207244.

It is an arithmetic number, because the mean of its divisors is an integer number (885069360).

Almost surely, 2^11111101012 is an apocalyptic number.

It is an amenable number.

11111101012 is a deficient number, since it is larger than the sum of its proper divisors (10130563628).

11111101012 is a wasteful number, since it uses less digits than its factorization.

11111101012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351951 (or 351949 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 11111101012 its reverse (21010111111), we get a palindrome (32121212123).

The spelling of 11111101012 in words is "eleven billion, one hundred eleven million, one hundred one thousand, twelve".