2331021323111 has 16 divisors (see below), whose sum is σ = 2559015825408. Its totient is φ = 2110299189600.

The previous prime is 2331021323039. The next prime is 2331021323119. The reversal of 2331021323111 is 1113231201332.

It is a cyclic number.

It is not a de Polignac number, because 2331021323111 - 2³⁸ = 2056143416167 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 (2331021323119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6434921 + ... + 6787506.

It is an arithmetic number, because the mean of its divisors is an integer number (159938489088).

Almost surely, 2^{2331021323111} is an apocalyptic number.

2331021323111 is a deficient number, since it is larger than the sum of its proper divisors (227994502297).

2331021323111 is a wasteful number, since it uses less digits than its factorization.

2331021323111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13222702.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 2331021323111 its reverse (1113231201332), we get a palindrome (3444252524443).

The spelling of 2331021323111 in words is "two trillion, three hundred thirty-one billion, twenty-one million, three hundred twenty-three thousand, one hundred eleven".