111123124421001 has 64 divisors (see below), whose sum is σ = 186052128768000. Its totient is φ = 57311674156800.

The previous prime is 111123124420939. The next prime is 111123124421011. The reversal of 111123124421001 is 100124421321111.

It is not a de Polignac number, because 111123124421001 - 2¹⁰ = 111123124419977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111123124421011) 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, 71893815 + ... + 73423203.

It is an arithmetic number, because the mean of its divisors is an integer number (2907064512000).

Almost surely, 2^{111123124421001} is an apocalyptic number.

111123124421001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111123124421001 is a deficient number, since it is larger than the sum of its proper divisors (74929004346999).

111123124421001 is a wasteful number, since it uses less digits than its factorization.

111123124421001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1531670.

The product of its (nonzero) digits is 384, while the sum is 24.

Adding to 111123124421001 its reverse (100124421321111), we get a palindrome (211247545742112).

The spelling of 111123124421001 in words is "one hundred eleven trillion, one hundred twenty-three billion, one hundred twenty-four million, four hundred twenty-one thousand, one".