1200103010111 has 4 divisors (see below), whose sum is σ = 1200266319000. Its totient is φ = 1199939701224.

The previous prime is 1200103010077. The next prime is 1200103010129. The reversal of 1200103010111 is 1110103010021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1200103010111 - 2¹⁰ = 1200103009087 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1200103010092 and 1200103010101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200103010011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81643421 + ... + 81658118.

It is an arithmetic number, because the mean of its divisors is an integer number (300066579750).

Almost surely, 2^{1200103010111} is an apocalyptic number.

1200103010111 is a deficient number, since it is larger than the sum of its proper divisors (163308889).

1200103010111 is an equidigital number, since it uses as much as digits as its factorization.

1200103010111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163308888.

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 1200103010111 its reverse (1110103010021), we get a palindrome (2310206020132).

The spelling of 1200103010111 in words is "one trillion, two hundred billion, one hundred three million, ten thousand, one hundred eleven".