1200203123113 has 8 divisors (see below), whose sum is σ = 1265965910720. Its totient is φ = 1134699755760.

The previous prime is 1200203123107. The next prime is 1200203123131. The reversal of 1200203123113 is 3113213020021.

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-1200203123113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1200203123153) 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, 64845558 + ... + 64864063.

It is an arithmetic number, because the mean of its divisors is an integer number (158245738840).

Almost surely, 2^{1200203123113} is an apocalyptic number.

It is an amenable number.

1200203123113 is a deficient number, since it is larger than the sum of its proper divisors (65762787607).

1200203123113 is a wasteful number, since it uses less digits than its factorization.

1200203123113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129710127.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1200203123113 its reverse (3113213020021), we get a palindrome (4313416143134).

The spelling of 1200203123113 in words is "one trillion, two hundred billion, two hundred three million, one hundred twenty-three thousand, one hundred thirteen".