124113435421111 has 4 divisors (see below), whose sum is σ = 129509671743792. Its totient is φ = 118717199098432.

The previous prime is 124113435421037. The next prime is 124113435421121. The reversal of 124113435421111 is 111124534311421.

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 124113435421111 - 2²⁷ = 124113301203383 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 (124113435421121) 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, 2698118161306 + ... + 2698118161351.

It is an arithmetic number, because the mean of its divisors is an integer number (32377417935948).

Almost surely, 2^{124113435421111} is an apocalyptic number.

124113435421111 is a deficient number, since it is larger than the sum of its proper divisors (5396236322681).

124113435421111 is an equidigital number, since it uses as much as digits as its factorization.

124113435421111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5396236322680.

The product of its digits is 11520, while the sum is 34.

Adding to 124113435421111 its reverse (111124534311421), we get a palindrome (235237969732532).

The spelling of 124113435421111 in words is "one hundred twenty-four trillion, one hundred thirteen billion, four hundred thirty-five million, four hundred twenty-one thousand, one hundred eleven".