1201201113311 has 8 divisors (see below), whose sum is σ = 1205116683264. Its totient is φ = 1197285884920.

The previous prime is 1201201113271. The next prime is 1201201113319. The reversal of 1201201113311 is 1133111021021.

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

It is a cyclic number.

It is not a de Polignac number, because 1201201113311 - 2¹⁸ = 1201200851167 is a prime.

It is a super-2 number, since 2×1201201113311² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1201201113311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201201113319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8295050 + ... + 8438616.

It is an arithmetic number, because the mean of its divisors is an integer number (150639585408).

Almost surely, 2^{1201201113311} is an apocalyptic number.

1201201113311 is a deficient number, since it is larger than the sum of its proper divisors (3915569953).

1201201113311 is a wasteful number, since it uses less digits than its factorization.

1201201113311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170781.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 1201201113311 its reverse (1133111021021), we get a palindrome (2334312134332).

The spelling of 1201201113311 in words is "one trillion, two hundred one billion, two hundred one million, one hundred thirteen thousand, three hundred eleven".