111242343411545 has 32 divisors (see below), whose sum is σ = 145136457953280. Its totient is φ = 81541361603520.

The previous prime is 111242343411541. The next prime is 111242343411557. The reversal of 111242343411545 is 545114343242111.

It is not a de Polignac number, because 111242343411545 - 2² = 111242343411541 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111242343411541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6420407 + ... + 16239036.

It is an arithmetic number, because the mean of its divisors is an integer number (4535514311040).

Almost surely, 2^{111242343411545} is an apocalyptic number.

It is an amenable number.

111242343411545 is a deficient number, since it is larger than the sum of its proper divisors (33894114541735).

111242343411545 is a wasteful number, since it uses less digits than its factorization.

111242343411545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22661165.

The product of its digits is 230400, while the sum is 41.

Adding to 111242343411545 its reverse (545114343242111), we get a palindrome (656356686653656).

The spelling of 111242343411545 in words is "one hundred eleven trillion, two hundred forty-two billion, three hundred forty-three million, four hundred eleven thousand, five hundred forty-five".