124342220111 has 4 divisors (see below), whose sum is σ = 126380617224. Its totient is φ = 122303823000.

The previous prime is 124342220099. The next prime is 124342220137. The reversal of 124342220111 is 111022243421.

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

It is a cyclic number.

It is not a de Polignac number, because 124342220111 - 2⁶ = 124342220047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124342240111) 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, 1019198465 + ... + 1019198586.

It is an arithmetic number, because the mean of its divisors is an integer number (31595154306).

Almost surely, 2^124342220111 is an apocalyptic number.

124342220111 is a deficient number, since it is larger than the sum of its proper divisors (2038397113).

124342220111 is an equidigital number, since it uses as much as digits as its factorization.

124342220111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2038397112.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 124342220111 its reverse (111022243421), we get a palindrome (235364463532).

The spelling of 124342220111 in words is "one hundred twenty-four billion, three hundred forty-two million, two hundred twenty thousand, one hundred eleven".