233130021111 has 12 divisors (see below), whose sum is σ = 362646699688. Its totient is φ = 143464628304.

The previous prime is 233130021107. The next prime is 233130021119. The reversal of 233130021111 is 111120031332.

233130021111 is a `hidden beast` number, since 2 + 331 + 300 + 21 + 1 + 11 = 666.

It is not a de Polignac number, because 233130021111 - 2² = 233130021107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233130021119) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 996282025 + ... + 996282258.

Almost surely, 2^233130021111 is an apocalyptic number.

233130021111 is a deficient number, since it is larger than the sum of its proper divisors (129516678577).

233130021111 is a wasteful number, since it uses less digits than its factorization.

233130021111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1992564302 (or 1992564299 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 233130021111 its reverse (111120031332), we get a palindrome (344250052443).

The spelling of 233130021111 in words is "two hundred thirty-three billion, one hundred thirty million, twenty-one thousand, one hundred eleven".