311230000211 has 8 divisors (see below), whose sum is σ = 340665373104. Its totient is φ = 282579570720.

The previous prime is 311230000177. The next prime is 311230000267. The reversal of 311230000211 is 112000032113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-311230000211 is a prime.

It is a super-2 number, since 2×311230000211² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311230000271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196235021 + ... + 196236606.

It is an arithmetic number, because the mean of its divisors is an integer number (42583171638).

Almost surely, 2^311230000211 is an apocalyptic number.

311230000211 is a deficient number, since it is larger than the sum of its proper divisors (29435372893).

311230000211 is a wasteful number, since it uses less digits than its factorization.

311230000211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392471701.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 311230000211 its reverse (112000032113), we get a palindrome (423230032324).

The spelling of 311230000211 in words is "three hundred eleven billion, two hundred thirty million, two hundred eleven", and thus it is an aban number.