1201132023311 has 16 divisors (see below), whose sum is σ = 1334739990528. Its totient is φ = 1071731018400.

The previous prime is 1201132023307. The next prime is 1201132023349. The reversal of 1201132023311 is 1133202311021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1201132023311 - 2² = 1201132023307 is a prime.

It is a super-3 number, since 3×1201132023311³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201132023911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3274136 + ... + 3622461.

It is an arithmetic number, because the mean of its divisors is an integer number (83421249408).

Almost surely, 2^{1201132023311} is an apocalyptic number.

1201132023311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1201132023311 is a deficient number, since it is larger than the sum of its proper divisors (133607967217).

1201132023311 is a wasteful number, since it uses less digits than its factorization.

1201132023311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6896902.

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

Adding to 1201132023311 its reverse (1133202311021), we get a palindrome (2334334334332).

The spelling of 1201132023311 in words is "one trillion, two hundred one billion, one hundred thirty-two million, twenty-three thousand, three hundred eleven".