1201202133311 has 4 divisors (see below), whose sum is σ = 1220893971624. Its totient is φ = 1181510295000.

The previous prime is 1201202133301. The next prime is 1201202133317. The reversal of 1201202133311 is 1133312021021.

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 1201202133311 - 2²⁶ = 1201135024447 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 (1201202133317) 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, 9845919065 + ... + 9845919186.

It is an arithmetic number, because the mean of its divisors is an integer number (305223492906).

Almost surely, 2^{1201202133311} is an apocalyptic number.

1201202133311 is a deficient number, since it is larger than the sum of its proper divisors (19691838313).

1201202133311 is an equidigital number, since it uses as much as digits as its factorization.

1201202133311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19691838312.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1201202133311 its reverse (1133312021021), we get a palindrome (2334514154332).

The spelling of 1201202133311 in words is "one trillion, two hundred one billion, two hundred two million, one hundred thirty-three thousand, three hundred eleven".