211311311230 has 16 divisors (see below), whose sum is σ = 380385532800. Its totient is φ = 84518930592.

The previous prime is 211311311219. The next prime is 211311311251. The reversal of 211311311230 is 32113113112.

It is a super-2 number, since 2×211311311230² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211311311198 and 211311311207.

It is a congruent number.

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, 538830 + ... + 844369.

It is an arithmetic number, because the mean of its divisors is an integer number (23774095800).

Almost surely, 2^211311311230 is an apocalyptic number.

211311311230 is a deficient number, since it is larger than the sum of its proper divisors (169074221570).

211311311230 is a wasteful number, since it uses less digits than its factorization.

211311311230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1398483.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 211311311230 its reverse (32113113112), we get a palindrome (243424424342).

The spelling of 211311311230 in words is "two hundred eleven billion, three hundred eleven million, three hundred eleven thousand, two hundred thirty".