1201330440311 has 4 divisors (see below), whose sum is σ = 1201351847112. Its totient is φ = 1201309033512.

The previous prime is 1201330440307. The next prime is 1201330440353. The reversal of 1201330440311 is 1130440331021.

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 1201330440311 - 2² = 1201330440307 is a prime.

It is a super-2 number, since 2×1201330440311² (a number of 25 digits) contains 22 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 (1201330440361) 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, 10619000 + ... + 10731533.

It is an arithmetic number, because the mean of its divisors is an integer number (300337961778).

Almost surely, 2^{1201330440311} is an apocalyptic number.

1201330440311 is a deficient number, since it is larger than the sum of its proper divisors (21406801).

1201330440311 is an equidigital number, since it uses as much as digits as its factorization.

1201330440311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21406800.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1201330440311 its reverse (1130440331021), we get a palindrome (2331770771332).

The spelling of 1201330440311 in words is "one trillion, two hundred one billion, three hundred thirty million, four hundred forty thousand, three hundred eleven".