1243301220311 has 8 divisors (see below), whose sum is σ = 1254966667920. Its totient is φ = 1231636621248.

The previous prime is 1243301220253. The next prime is 1243301220353. The reversal of 1243301220311 is 1130221033421.

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 1243301220311 - 2⁶ = 1243301220247 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 (1243301270311) 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, 2952395 + ... + 3347123.

It is an arithmetic number, because the mean of its divisors is an integer number (156870833490).

Almost surely, 2^{1243301220311} is an apocalyptic number.

1243301220311 is a deficient number, since it is larger than the sum of its proper divisors (11665447609).

1243301220311 is a wasteful number, since it uses less digits than its factorization.

1243301220311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424273.

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

Adding to 1243301220311 its reverse (1130221033421), we get a palindrome (2373522253732).

The spelling of 1243301220311 in words is "one trillion, two hundred forty-three billion, three hundred one million, two hundred twenty thousand, three hundred eleven".