111204261306 has 24 divisors (see below), whose sum is σ = 241021245504. Its totient is φ = 37055982600.

The previous prime is 111204261241. The next prime is 111204261317. The reversal of 111204261306 is 603162402111.

It is a happy number.

111204261306 is a `hidden beast` number, since 1 + 1 + 1 + 2 + 0 + 42 + 613 + 0 + 6 = 666.

It is a super-2 number, since 2×111204261306² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111204261306.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 951970 + ... + 1062381.

It is an arithmetic number, because the mean of its divisors is an integer number (10042551896).

Almost surely, 2^111204261306 is an apocalyptic number.

111204261306 is an abundant number, since it is smaller than the sum of its proper divisors (129816984198).

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

111204261306 is a wasteful number, since it uses less digits than its factorization.

111204261306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2017426 (or 2017423 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

Adding to 111204261306 its reverse (603162402111), we get a palindrome (714366663417).

The spelling of 111204261306 in words is "one hundred eleven billion, two hundred four million, two hundred sixty-one thousand, three hundred six".