1201333111311 has 8 divisors (see below), whose sum is σ = 1601798526000. Its totient is φ = 800878218752.

The previous prime is 1201333111301. The next prime is 1201333111333. The reversal of 1201333111311 is 1131113331021.

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 1201333111311 - 2⁹ = 1201333110799 is a prime.

It is a super-2 number, since 2×1201333111311² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201333111301) 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, 2360160 + ... + 2823653.

It is an arithmetic number, because the mean of its divisors is an integer number (200224815750).

Almost surely, 2^{1201333111311} is an apocalyptic number.

1201333111311 is a deficient number, since it is larger than the sum of its proper divisors (400465414689).

1201333111311 is an equidigital number, since it uses as much as digits as its factorization.

1201333111311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5261065.

The product of its (nonzero) digits is 162, while the sum is 21.

Adding to 1201333111311 its reverse (1131113331021), we get a palindrome (2332446442332).

The spelling of 1201333111311 in words is "one trillion, two hundred one billion, three hundred thirty-three million, one hundred eleven thousand, three hundred eleven".