311000112012231 has 48 divisors (see below), whose sum is σ = 463926132327840. Its totient is φ = 200609377678080.

The previous prime is 311000112012229. The next prime is 311000112012251. The reversal of 311000112012231 is 132210211000113.

311000112012231 is a `hidden beast` number, since 311 + 0 + 0 + 0 + 1 + 120 + 1 + 2 + 231 = 666.

It is not a de Polignac number, because 311000112012231 - 2¹ = 311000112012229 is a prime.

It is a super-2 number, since 2×311000112012231² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311000112012251) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3107806665 + ... + 3107906733.

It is an arithmetic number, because the mean of its divisors is an integer number (9665127756830).

Almost surely, 2^{311000112012231} is an apocalyptic number.

311000112012231 is a deficient number, since it is larger than the sum of its proper divisors (152926020315609).

311000112012231 is a wasteful number, since it uses less digits than its factorization.

311000112012231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151856 (or 151853 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 311000112012231 its reverse (132210211000113), we get a palindrome (443210323012344).

The spelling of 311000112012231 in words is "three hundred eleven trillion, one hundred twelve million, twelve thousand, two hundred thirty-one".