121111410043 has 4 divisors (see below), whose sum is σ = 130427672368. Its totient is φ = 111795147720.

The previous prime is 121111410037. The next prime is 121111410097. The reversal of 121111410043 is 340014111121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121111410043 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121111410043.

It is not an unprimeable number, because it can be changed into a prime (121111410023) 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, 4658131143 + ... + 4658131168.

It is an arithmetic number, because the mean of its divisors is an integer number (32606918092).

Almost surely, 2^121111410043 is an apocalyptic number.

121111410043 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

121111410043 is a deficient number, since it is larger than the sum of its proper divisors (9316262325).

121111410043 is an equidigital number, since it uses as much as digits as its factorization.

121111410043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9316262324.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 121111410043 its reverse (340014111121), we get a palindrome (461125521164).

The spelling of 121111410043 in words is "one hundred twenty-one billion, one hundred eleven million, four hundred ten thousand, forty-three".