1312200100311 has 4 divisors (see below), whose sum is σ = 1749600133752. Its totient is φ = 874800066872.

The previous prime is 1312200100307. The next prime is 1312200100319. The reversal of 1312200100311 is 1130010022131.

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 1312200100311 - 2² = 1312200100307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312200100319) 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 3 ways as a sum of consecutive naturals, for example, 218700016716 + ... + 218700016721.

It is an arithmetic number, because the mean of its divisors is an integer number (437400033438).

Almost surely, 2^{1312200100311} is an apocalyptic number.

1312200100311 is a deficient number, since it is larger than the sum of its proper divisors (437400033441).

1312200100311 is an equidigital number, since it uses as much as digits as its factorization.

1312200100311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437400033440.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 1312200100311 its reverse (1130010022131), we get a palindrome (2442210122442).

The spelling of 1312200100311 in words is "one trillion, three hundred twelve billion, two hundred million, one hundred thousand, three hundred eleven".