1112123210321 has 2 divisors, whose sum is σ = 1112123210322. Its totient is φ = 1112123210320.

The previous prime is 1112123210281. The next prime is 1112123210371. The reversal of 1112123210321 is 1230123212111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 602120129296 + 510003081025 = 775964^2 + 714145^2 .

It is a cyclic number.

It is not a de Polignac number, because 1112123210321 - 2¹⁰ = 1112123209297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1112123210293 and 1112123210302.

It is not a weakly prime, because it can be changed into another prime (1112123210371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556061605160 + 556061605161.

It is an arithmetic number, because the mean of its divisors is an integer number (556061605161).

Almost surely, 2^{1112123210321} is an apocalyptic number.

It is an amenable number.

1112123210321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1112123210321 is an equidigital number, since it uses as much as digits as its factorization.

1112123210321 is an evil number, because the sum of its binary digits is even.

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

Adding to 1112123210321 its reverse (1230123212111), we get a palindrome (2342246422432).

The spelling of 1112123210321 in words is "one trillion, one hundred twelve billion, one hundred twenty-three million, two hundred ten thousand, three hundred twenty-one".