111545251612143 has 16 divisors (see below), whose sum is σ = 148915892501376. Its totient is φ = 74269058761440.

The previous prime is 111545251612121. The next prime is 111545251612147. The reversal of 111545251612143 is 341216152545111.

It is not a de Polignac number, because 111545251612143 - 2⁵ = 111545251612111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111545251612095 and 111545251612104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111545251612147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173368308 + ... + 174010518.

It is an arithmetic number, because the mean of its divisors is an integer number (9307243281336).

Almost surely, 2^{111545251612143} is an apocalyptic number.

111545251612143 is a deficient number, since it is larger than the sum of its proper divisors (37370640889233).

111545251612143 is an equidigital number, since it uses as much as digits as its factorization.

111545251612143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715654.

The product of its digits is 144000, while the sum is 42.

The spelling of 111545251612143 in words is "one hundred eleven trillion, five hundred forty-five billion, two hundred fifty-one million, six hundred twelve thousand, one hundred forty-three".