1011111100100 has 36 divisors (see below), whose sum is σ = 2264888871168. Its totient is φ = 391397844000.

The previous prime is 1011111100093. The next prime is 1011111100121. The reversal of 1011111100100 is 10011111101.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 163079336 + ... + 163085535.

Almost surely, 2^{1011111100100} is an apocalyptic number.

1011111100100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011111100100 is an abundant number, since it is smaller than the sum of its proper divisors (1253777771068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1011111100100 is a wasteful number, since it uses less digits than its factorization.

1011111100100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326164916 (or 326164909 counting only the distinct ones).

The product of its (nonzero) digits is 1, while the sum is 8.

Adding to 1011111100100 its reverse (10011111101), we get a palindrome (1021122211201).

It can be divided in two parts, 1011 and 111100100, that added together give a palindrome (111101111).

The spelling of 1011111100100 in words is "one trillion, eleven billion, one hundred eleven million, one hundred thousand, one hundred".