311200231211312 has 10 divisors (see below), whose sum is σ = 602950447971948. Its totient is φ = 155600115605648.

The previous prime is 311200231211291. The next prime is 311200231211321. The reversal of 311200231211312 is 213112132002113.

It is a happy number.

It is a super-2 number, since 2×311200231211312² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9725007225338 + ... + 9725007225369.

Almost surely, 2^{311200231211312} is an apocalyptic number.

It is an amenable number.

311200231211312 is a deficient number, since it is larger than the sum of its proper divisors (291750216760636).

311200231211312 is a wasteful number, since it uses less digits than its factorization.

311200231211312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19450014450715 (or 19450014450709 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 311200231211312 its reverse (213112132002113), we get a palindrome (524312363213425).

The spelling of 311200231211312 in words is "three hundred eleven trillion, two hundred billion, two hundred thirty-one million, two hundred eleven thousand, three hundred twelve".