1011112011100 has 72 divisors (see below), whose sum is σ = 2199004615808. Its totient is φ = 403543857600.

The previous prime is 1011112011089. The next prime is 1011112011121. The reversal of 1011112011100 is 11102111101.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 219661399 + ... + 219666001.

Almost surely, 2^{1011112011100} is an apocalyptic number.

1011112011100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011112011100 is an abundant number, since it is smaller than the sum of its proper divisors (1187892604708).

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

1011112011100 is a wasteful number, since it uses less digits than its factorization.

1011112011100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9035 (or 9028 counting only the distinct ones).

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

Adding to 1011112011100 its reverse (11102111101), we get a palindrome (1022214122201).

The spelling of 1011112011100 in words is "one trillion, eleven billion, one hundred twelve million, eleven thousand, one hundred".