111440331012 has 24 divisors (see below), whose sum is σ = 260106161056. Its totient is φ = 37135531008.

The previous prime is 111440331011. The next prime is 111440331061. The reversal of 111440331012 is 210133044111.

It is a self number, because there is not a number n which added to its sum of digits gives 111440331012.

It is not an unprimeable number, because it can be changed into a prime (111440331011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1364413 + ... + 1443780.

Almost surely, 2^111440331012 is an apocalyptic number.

111440331012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111440331012 is an abundant number, since it is smaller than the sum of its proper divisors (148665830044).

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

111440331012 is a wasteful number, since it uses less digits than its factorization.

111440331012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2811507 (or 2811505 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 111440331012 its reverse (210133044111), we get a palindrome (321573375123).

The spelling of 111440331012 in words is "one hundred eleven billion, four hundred forty million, three hundred thirty-one thousand, twelve".