1200023011120 has 40 divisors (see below), whose sum is σ = 2792218250880. Its totient is φ = 479636774400.

The previous prime is 1200023011073. The next prime is 1200023011129. The reversal of 1200023011120 is 211103200021.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 1200023011120.

It is not an unprimeable number, because it can be changed into a prime (1200023011129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5715456 + ... + 5921695.

It is an arithmetic number, because the mean of its divisors is an integer number (69805456272).

Almost surely, 2^{1200023011120} is an apocalyptic number.

1200023011120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200023011120 is an abundant number, since it is smaller than the sum of its proper divisors (1592195239760).

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

1200023011120 is a wasteful number, since it uses less digits than its factorization.

1200023011120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11638453 (or 11638447 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 1200023011120 its reverse (211103200021), we get a palindrome (1411126211141).

The spelling of 1200023011120 in words is "one trillion, two hundred billion, twenty-three million, eleven thousand, one hundred twenty".