101111001200 has 120 divisors (see below), whose sum is σ = 273551586816. Its totient is φ = 35581536000.

The previous prime is 101111001151. The next prime is 101111001223. The reversal of 101111001200 is 2100111101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 234242 + ... + 507041.

Almost surely, 2^101111001200 is an apocalyptic number.

101111001200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101111001200 is an abundant number, since it is smaller than the sum of its proper divisors (172440585616).

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

101111001200 is a wasteful number, since it uses less digits than its factorization.

101111001200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741343 (or 741332 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 101111001200 its reverse (2100111101), we get a palindrome (103211112301).

The spelling of 101111001200 in words is "one hundred one billion, one hundred eleven million, one thousand, two hundred".