111302231012 has 24 divisors (see below), whose sum is σ = 222753048000. Its totient is φ = 47669116320.

The previous prime is 111302231009. The next prime is 111302231039. The reversal of 111302231012 is 210132203111.

It is a super-2 number, since 2×111302231012² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1283939 + ... + 1367882.

It is an arithmetic number, because the mean of its divisors is an integer number (9281377000).

Almost surely, 2^111302231012 is an apocalyptic number.

It is an amenable number.

111302231012 is an abundant number, since it is smaller than the sum of its proper divisors (111450816988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111302231012 is a wasteful number, since it uses less digits than its factorization.

111302231012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2653331 (or 2653329 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 111302231012 its reverse (210132203111), we get a palindrome (321434434123).

The spelling of 111302231012 in words is "one hundred eleven billion, three hundred two million, two hundred thirty-one thousand, twelve".