111104135145 has 24 divisors (see below), whose sum is σ = 192588736392. Its totient is φ = 59253004800.

The previous prime is 111104135119. The next prime is 111104135167. The reversal of 111104135145 is 541531401111.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 23306296896 + 87797838249 = 152664^2 + 296307^2 .

It is not a de Polignac number, because 111104135145 - 2¹⁵ = 111104102377 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1537935 + ... + 1608555.

It is an arithmetic number, because the mean of its divisors is an integer number (8024530683).

Almost surely, 2^111104135145 is an apocalyptic number.

111104135145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

111104135145 is a deficient number, since it is larger than the sum of its proper divisors (81484601247).

111104135145 is a wasteful number, since it uses less digits than its factorization.

111104135145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105593 (or 105590 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 27.

Adding to 111104135145 its reverse (541531401111), we get a palindrome (652635536256).

The spelling of 111104135145 in words is "one hundred eleven billion, one hundred four million, one hundred thirty-five thousand, one hundred forty-five".