4431121020111 has 16 divisors (see below), whose sum is σ = 6175295965440. Its totient is φ = 2820940795200.

The previous prime is 4431121020091. The next prime is 4431121020113. The reversal of 4431121020111 is 1110201211344.

It is not a de Polignac number, because 4431121020111 - 2¹⁵ = 4431120987343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4431121020113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53385441 + ... + 53468378.

It is an arithmetic number, because the mean of its divisors is an integer number (385955997840).

Almost surely, 2^{4431121020111} is an apocalyptic number.

4431121020111 is a deficient number, since it is larger than the sum of its proper divisors (1744174945329).

4431121020111 is a wasteful number, since it uses less digits than its factorization.

4431121020111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106854446.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 4431121020111 its reverse (1110201211344), we get a palindrome (5541322231455).

The spelling of 4431121020111 in words is "four trillion, four hundred thirty-one billion, one hundred twenty-one million, twenty thousand, one hundred eleven".