311230220022000 has 320 divisors, whose sum is σ = 1115080748121600. Its totient is φ = 82980958291200.

The previous prime is 311230220021971. The next prime is 311230220022023. The reversal of 311230220022000 is 220022032113.

311230220022000 is a `hidden beast` number, since 3 + 11 + 230 + 2 + 200 + 220 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 327143011 + ... + 328092989.

It is an arithmetic number, because the mean of its divisors is an integer number (3484627337880).

Almost surely, 2^{311230220022000} is an apocalyptic number.

311230220022000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 311230220022000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (557540374060800).

311230220022000 is an abundant number, since it is smaller than the sum of its proper divisors (803850528099600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

311230220022000 is a wasteful number, since it uses less digits than its factorization.

311230220022000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956078 (or 956056 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 311230220022000 its reverse (220022032113), we get a palindrome (311450242054113).

The spelling of 311230220022000 in words is "three hundred eleven trillion, two hundred thirty billion, two hundred twenty million, twenty-two thousand".