311211320001 has 16 divisors (see below), whose sum is σ = 416255749440. Its totient is φ = 206821581120.

The previous prime is 311211319967. The next prime is 311211320039. The reversal of 311211320001 is 100023112113.

It is a happy number.

It is not a de Polignac number, because 311211320001 - 2¹³ = 311211311809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (311211320051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1087570 + ... + 1343588.

It is an arithmetic number, because the mean of its divisors is an integer number (26015984340).

Almost surely, 2^311211320001 is an apocalyptic number.

It is an amenable number.

311211320001 is a deficient number, since it is larger than the sum of its proper divisors (105044429439).

311211320001 is a wasteful number, since it uses less digits than its factorization.

311211320001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257296.

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

Adding to 311211320001 its reverse (100023112113), we get a palindrome (411234432114).

The spelling of 311211320001 in words is "three hundred eleven billion, two hundred eleven million, three hundred twenty thousand, one".