311232012111 has 24 divisors (see below), whose sum is σ = 461741926464. Its totient is φ = 201865193280.

The previous prime is 311232012101. The next prime is 311232012151. The reversal of 311232012111 is 111210232113.

311232012111 is a `hidden beast` number, since 311 + 2 + 320 + 1 + 21 + 11 = 666.

It is not a de Polignac number, because 311232012111 - 2¹⁹ = 311231487823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311232012101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6028570 + ... + 6079976.

It is an arithmetic number, because the mean of its divisors is an integer number (19239246936).

Almost surely, 2^311232012111 is an apocalyptic number.

311232012111 is a deficient number, since it is larger than the sum of its proper divisors (150509914353).

311232012111 is a wasteful number, since it uses less digits than its factorization.

311232012111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69631 (or 69628 counting only the distinct ones).

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

Adding to 311232012111 its reverse (111210232113), we get a palindrome (422442244224).

The spelling of 311232012111 in words is "three hundred eleven billion, two hundred thirty-two million, twelve thousand, one hundred eleven".