1101111011200 has 96 divisors (see below), whose sum is σ = 2734183550160. Its totient is φ = 438162063360.

The previous prime is 1101111011171. The next prime is 1101111011213. The reversal of 1101111011200 is 21101111011.

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 11 ways as a sum of consecutive naturals, for example, 273844 + ... + 1509043.

Almost surely, 2^{1101111011200} is an apocalyptic number.

1101111011200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1101111011200 is an abundant number, since it is smaller than the sum of its proper divisors (1633072538960).

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

1101111011200 is a wasteful number, since it uses less digits than its factorization.

1101111011200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1783104 (or 1783087 counting only the distinct ones).

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

Adding to 1101111011200 its reverse (21101111011), we get a palindrome (1122212122211).

The spelling of 1101111011200 in words is "one trillion, one hundred one billion, one hundred eleven million, eleven thousand, two hundred".