2112310211321 has 16 divisors (see below), whose sum is σ = 2198306822400. Its totient is φ = 2027222066688.

The previous prime is 2112310211317. The next prime is 2112310211381. The reversal of 2112310211321 is 1231120132112.

It is a cyclic number.

It is not a de Polignac number, because 2112310211321 - 2² = 2112310211317 is a prime.

It is a super-3 number, since 3×2112310211321³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2112310211293 and 2112310211302.

It is not an unprimeable number, because it can be changed into a prime (2112310211381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3512681 + ... + 4069833.

It is an arithmetic number, because the mean of its divisors is an integer number (137394176400).

Almost surely, 2^{2112310211321} is an apocalyptic number.

It is an amenable number.

2112310211321 is a deficient number, since it is larger than the sum of its proper divisors (85996611079).

2112310211321 is a wasteful number, since it uses less digits than its factorization.

2112310211321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557968.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 2112310211321 its reverse (1231120132112), we get a palindrome (3343430343433).

The spelling of 2112310211321 in words is "two trillion, one hundred twelve billion, three hundred ten million, two hundred eleven thousand, three hundred twenty-one".