2331312330021 has 16 divisors (see below), whose sum is σ = 3294281285568. Its totient is φ = 1461443398400.

The previous prime is 2331312329971. The next prime is 2331312330037. The reversal of 2331312330021 is 1200332131332.

It is a cyclic number.

It is not a de Polignac number, because 2331312330021 - 2⁹ = 2331312329509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2331312329973 and 2331312330000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2331312330091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20893950 + ... + 21005231.

It is an arithmetic number, because the mean of its divisors is an integer number (205892580348).

Almost surely, 2^{2331312330021} is an apocalyptic number.

It is an amenable number.

2331312330021 is a deficient number, since it is larger than the sum of its proper divisors (962968955547).

2331312330021 is a wasteful number, since it uses less digits than its factorization.

2331312330021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41900292.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 2331312330021 its reverse (1200332131332), we get a palindrome (3531644461353).

The spelling of 2331312330021 in words is "two trillion, three hundred thirty-one billion, three hundred twelve million, three hundred thirty thousand, twenty-one".