1200020043112 has 32 divisors (see below), whose sum is σ = 2485657180800. Its totient is φ = 538559049600.

The previous prime is 1200020043077. The next prime is 1200020043137. The reversal of 1200020043112 is 2113400200021.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86300589 + ... + 86314492.

It is an arithmetic number, because the mean of its divisors is an integer number (77676786900).

Almost surely, 2^{1200020043112} is an apocalyptic number.

It is an amenable number.

1200020043112 is an abundant number, since it is smaller than the sum of its proper divisors (1285637137688).

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

1200020043112 is a wasteful number, since it uses less digits than its factorization.

1200020043112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172615177 (or 172615173 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 1200020043112 its reverse (2113400200021), we get a palindrome (3313420243133).

The spelling of 1200020043112 in words is "one trillion, two hundred billion, twenty million, forty-three thousand, one hundred twelve".