111020411345 has 4 divisors (see below), whose sum is σ = 133224493620. Its totient is φ = 88816329072.

The previous prime is 111020411339. The next prime is 111020411347. The reversal of 111020411345 is 543114020111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 41808798784 + 69211612561 = 204472^2 + 263081^2 .

It is a cyclic number.

It is not a de Polignac number, because 111020411345 - 2¹² = 111020407249 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111020411345.

It is not an unprimeable number, because it can be changed into a prime (111020411347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11102041130 + ... + 11102041139.

It is an arithmetic number, because the mean of its divisors is an integer number (33306123405).

Almost surely, 2^111020411345 is an apocalyptic number.

It is an amenable number.

111020411345 is a deficient number, since it is larger than the sum of its proper divisors (22204082275).

111020411345 is an equidigital number, since it uses as much as digits as its factorization.

111020411345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22204082274.

The product of its (nonzero) digits is 480, while the sum is 23.

Adding to 111020411345 its reverse (543114020111), we get a palindrome (654134431456).

The spelling of 111020411345 in words is "one hundred eleven billion, twenty million, four hundred eleven thousand, three hundred forty-five".