2312220312321 has 16 divisors (see below), whose sum is σ = 3217075445760. Its totient is φ = 1474425746640.

The previous prime is 2312220312277. The next prime is 2312220312331. The reversal of 2312220312321 is 1232130222132.

It is not a de Polignac number, because 2312220312321 - 2⁶ = 2312220312257 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2312220312291 and 2312220312300.

It is not an unprimeable number, because it can be changed into a prime (2312220312331) 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, 2868960 + ... + 3585438.

It is an arithmetic number, because the mean of its divisors is an integer number (201067215360).

Almost surely, 2^{2312220312321} is an apocalyptic number.

It is an amenable number.

2312220312321 is a deficient number, since it is larger than the sum of its proper divisors (904855133439).

2312220312321 is a wasteful number, since it uses less digits than its factorization.

2312220312321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763276.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 2312220312321 its reverse (1232130222132), we get a palindrome (3544350534453).

The spelling of 2312220312321 in words is "two trillion, three hundred twelve billion, two hundred twenty million, three hundred twelve thousand, three hundred twenty-one".