111023201331 has 144 divisors (see below), whose sum is σ = 198520657920. Its totient is φ = 59533729920.

The previous prime is 111023201327. The next prime is 111023201407. The reversal of 111023201331 is 133102320111.

111023201331 is a `hidden beast` number, since 1 + 1 + 10 + 2 + 320 + 1 + 331 = 666.

It is not a de Polignac number, because 111023201331 - 2² = 111023201327 is a prime.

It is a super-3 number, since 3×111023201331³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (111023202331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 54448810 + ... + 54450848.

It is an arithmetic number, because the mean of its divisors is an integer number (1378615680).

Almost surely, 2^111023201331 is an apocalyptic number.

111023201331 is a deficient number, since it is larger than the sum of its proper divisors (87497456589).

111023201331 is a wasteful number, since it uses less digits than its factorization.

111023201331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2214 (or 2204 counting only the distinct ones).

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

Adding to 111023201331 its reverse (133102320111), we get a palindrome (244125521442).

The spelling of 111023201331 in words is "one hundred eleven billion, twenty-three million, two hundred one thousand, three hundred thirty-one".