111355251345 has 48 divisors (see below), whose sum is σ = 207894016512. Its totient is φ = 54812903040.

The previous prime is 111355251277. The next prime is 111355251347. The reversal of 111355251345 is 543152553111.

111355251345 is a `hidden beast` number, since 1 + 1 + 13 + 55 + 251 + 345 = 666.

It is not a de Polignac number, because 111355251345 - 2⁸ = 111355251089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111355251347) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6453880 + ... + 6471110.

It is an arithmetic number, because the mean of its divisors is an integer number (4331125344).

Almost surely, 2^111355251345 is an apocalyptic number.

111355251345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

111355251345 is a deficient number, since it is larger than the sum of its proper divisors (96538765167).

111355251345 is a wasteful number, since it uses less digits than its factorization.

111355251345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28302 (or 28299 counting only the distinct ones).

The product of its digits is 45000, while the sum is 36.

The spelling of 111355251345 in words is "one hundred eleven billion, three hundred fifty-five million, two hundred fifty-one thousand, three hundred forty-five".