311211231104 has 16 divisors (see below), whose sum is σ = 619991124720. Its totient is φ = 155605615488.

The previous prime is 311211231059. The next prime is 311211231131. The reversal of 311211231104 is 401132112113.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1215668744 + ... + 1215668999.

It is an arithmetic number, because the mean of its divisors is an integer number (38749445295).

Almost surely, 2^311211231104 is an apocalyptic number.

It is an amenable number.

311211231104 is a deficient number, since it is larger than the sum of its proper divisors (308779893616).

311211231104 is an equidigital number, since it uses as much as digits as its factorization.

311211231104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2431337757 (or 2431337745 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 311211231104 its reverse (401132112113), we get a palindrome (712343343217).

The spelling of 311211231104 in words is "three hundred eleven billion, two hundred eleven million, two hundred thirty-one thousand, one hundred four".