1311001230311 has 4 divisors (see below), whose sum is σ = 1311607896624. Its totient is φ = 1310394564000.

The previous prime is 1311001230281. The next prime is 1311001230359. The reversal of 1311001230311 is 1130321001131.

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 1311001230311 - 2¹⁰ = 1311001229287 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1311001230311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311001238311) 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, 303329915 + ... + 303334236.

It is an arithmetic number, because the mean of its divisors is an integer number (327901974156).

Almost surely, 2^{1311001230311} is an apocalyptic number.

1311001230311 is a deficient number, since it is larger than the sum of its proper divisors (606666313).

1311001230311 is an equidigital number, since it uses as much as digits as its factorization.

1311001230311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606666312.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 1311001230311 its reverse (1130321001131), we get a palindrome (2441322231442).

The spelling of 1311001230311 in words is "one trillion, three hundred eleven billion, one million, two hundred thirty thousand, three hundred eleven".