111213230031111 has 32 divisors (see below), whose sum is σ = 160317079554240. Its totient is φ = 68170518134784.

The previous prime is 111213230031109. The next prime is 111213230031131. The reversal of 111213230031111 is 111130032312111.

It is not a de Polignac number, because 111213230031111 - 2¹ = 111213230031109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111213230031131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 365376661 + ... + 365680913.

It is an arithmetic number, because the mean of its divisors is an integer number (5009908736070).

Almost surely, 2^{111213230031111} is an apocalyptic number.

111213230031111 is a deficient number, since it is larger than the sum of its proper divisors (49103849523129).

111213230031111 is a wasteful number, since it uses less digits than its factorization.

111213230031111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340995.

The product of its (nonzero) digits is 108, while the sum is 21.

Adding to 111213230031111 its reverse (111130032312111), we get a palindrome (222343262343222).

The spelling of 111213230031111 in words is "one hundred eleven trillion, two hundred thirteen billion, two hundred thirty million, thirty-one thousand, one hundred eleven".