111233345680 has 40 divisors (see below), whose sum is σ = 265607198712. Its totient is φ = 43290814464.

The previous prime is 111233345669. The next prime is 111233345689. The reversal of 111233345680 is 86543332111.

It can be written as a sum of positive squares in 4 ways, for example, as 6578507664 + 104654838016 = 81108^2 + 323504^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (111233345689) 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, 18786457 + ... + 18792376.

Almost surely, 2^111233345680 is an apocalyptic number.

111233345680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111233345680 is an abundant number, since it is smaller than the sum of its proper divisors (154373853032).

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

111233345680 is a wasteful number, since it uses less digits than its factorization.

111233345680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37578883 (or 37578877 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

Adding to 111233345680 its reverse (86543332111), we get a palindrome (197776677791).

The spelling of 111233345680 in words is "one hundred eleven billion, two hundred thirty-three million, three hundred forty-five thousand, six hundred eighty".