2331111444421 has 8 divisors (see below), whose sum is σ = 2471177540160. Its totient is φ = 2191372225728.

The previous prime is 2331111444383. The next prime is 2331111444461. The reversal of 2331111444421 is 1244441111332.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2331111444421 - 2⁹ = 2331111443909 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 (2331111444461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81704571 + ... + 81733096.

It is an arithmetic number, because the mean of its divisors is an integer number (308897192520).

Almost surely, 2^{2331111444421} is an apocalyptic number.

It is an amenable number.

2331111444421 is a deficient number, since it is larger than the sum of its proper divisors (140066095739).

2331111444421 is a wasteful number, since it uses less digits than its factorization.

2331111444421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163438523.

The product of its digits is 9216, while the sum is 31.

Adding to 2331111444421 its reverse (1244441111332), we get a palindrome (3575552555753).

The spelling of 2331111444421 in words is "two trillion, three hundred thirty-one billion, one hundred eleven million, four hundred forty-four thousand, four hundred twenty-one".