1200110012111 has 8 divisors (see below), whose sum is σ = 1218521252784. Its totient is φ = 1181713452480.

The previous prime is 1200110012099. The next prime is 1200110012137. The reversal of 1200110012111 is 1112100110021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1200110012111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1200110012092 and 1200110012101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200110012911) 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, 3505460 + ... + 3832553.

It is an arithmetic number, because the mean of its divisors is an integer number (152315156598).

Almost surely, 2^{1200110012111} is an apocalyptic number.

1200110012111 is a deficient number, since it is larger than the sum of its proper divisors (18411240673).

1200110012111 is an equidigital number, since it uses as much as digits as its factorization.

1200110012111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7340521.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1200110012111 its reverse (1112100110021), we get a palindrome (2312210122132).

The spelling of 1200110012111 in words is "one trillion, two hundred billion, one hundred ten million, twelve thousand, one hundred eleven".