1011100561110 has 64 divisors (see below), whose sum is σ = 2789242948800. Its totient is φ = 260329337856.

The previous prime is 1011100561069. The next prime is 1011100561111. The reversal of 1011100561110 is 111650011101.

It is a happy number.

1011100561110 is a `hidden beast` number, since 1 + 0 + 1 + 1 + 100 + 561 + 1 + 1 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011100561111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64557979 + ... + 64573638.

It is an arithmetic number, because the mean of its divisors is an integer number (43581921075).

Almost surely, 2^{1011100561110} is an apocalyptic number.

1011100561110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1011100561110 is an abundant number, since it is smaller than the sum of its proper divisors (1778142387690).

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

1011100561110 is a wasteful number, since it uses less digits than its factorization.

1011100561110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129131662 (or 129131656 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 18.

Adding to 1011100561110 its reverse (111650011101), we get a palindrome (1122750572211).

The spelling of 1011100561110 in words is "one trillion, eleven billion, one hundred million, five hundred sixty-one thousand, one hundred ten".