111512453145 has 64 divisors (see below), whose sum is σ = 189705265920. Its totient is φ = 55827975168.

The previous prime is 111512453099. The next prime is 111512453147. The reversal of 111512453145 is 541354215111.

It is not a de Polignac number, because 111512453145 - 2⁸ = 111512452889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111512453147) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 39222094 + ... + 39224936.

It is an arithmetic number, because the mean of its divisors is an integer number (2964144780).

Almost surely, 2^111512453145 is an apocalyptic number.

111512453145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

111512453145 is a deficient number, since it is larger than the sum of its proper divisors (78192812775).

111512453145 is a wasteful number, since it uses less digits than its factorization.

111512453145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5354.

The product of its digits is 12000, while the sum is 33.

Adding to 111512453145 its reverse (541354215111), we get a palindrome (652866668256).

The spelling of 111512453145 in words is "one hundred eleven billion, five hundred twelve million, four hundred fifty-three thousand, one hundred forty-five".