1200111103013 has 4 divisors (see below), whose sum is σ = 1200116044128. Its totient is φ = 1200106161900.

The previous prime is 1200111102977. The next prime is 1200111103057. The reversal of 1200111103013 is 3103011110021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1200111103013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200111103913) 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, 2086313 + ... + 2598638.

It is an arithmetic number, because the mean of its divisors is an integer number (300029011032).

Almost surely, 2^{1200111103013} is an apocalyptic number.

It is an amenable number.

1200111103013 is a deficient number, since it is larger than the sum of its proper divisors (4941115).

1200111103013 is an equidigital number, since it uses as much as digits as its factorization.

1200111103013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4941114.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 1200111103013 its reverse (3103011110021), we get a palindrome (4303122213034).

The spelling of 1200111103013 in words is "one trillion, two hundred billion, one hundred eleven million, one hundred three thousand, thirteen".