311201213230 has 32 divisors (see below), whose sum is σ = 563307677856. Its totient is φ = 123782166144.

The previous prime is 311201213179. The next prime is 311201213243. The reversal of 311201213230 is 32312102113.

It is a junction number, because it is equal to n+sod(n) for n = 311201213198 and 311201213207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3715372 + ... + 3798208.

It is an arithmetic number, because the mean of its divisors is an integer number (17603364933).

Almost surely, 2^311201213230 is an apocalyptic number.

311201213230 is a deficient number, since it is larger than the sum of its proper divisors (252106464626).

311201213230 is a wasteful number, since it uses less digits than its factorization.

311201213230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84948.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 311201213230 its reverse (32312102113), we get a palindrome (343513315343).

The spelling of 311201213230 in words is "three hundred eleven billion, two hundred one million, two hundred thirteen thousand, two hundred thirty".