311211320002 has 16 divisors (see below), whose sum is σ = 536057776800. Its totient is φ = 134014443840.

The previous prime is 311211319967. The next prime is 311211320039. The reversal of 311211320002 is 200023112113.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 372261927 + ... + 372262762.

It is an arithmetic number, because the mean of its divisors is an integer number (33503611050).

Almost surely, 2^311211320002 is an apocalyptic number.

311211320002 is a deficient number, since it is larger than the sum of its proper divisors (224846456798).

311211320002 is a wasteful number, since it uses less digits than its factorization.

311211320002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744524721.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 311211320002 its reverse (200023112113), we get a palindrome (511234432115).

It can be divided in two parts, 3112113 and 20002, that multiplied together give a palindrome (62248484226).

The spelling of 311211320002 in words is "three hundred eleven billion, two hundred eleven million, three hundred twenty thousand, two".