1022311123321 has 4 divisors (see below), whose sum is σ = 1022517364132. Its totient is φ = 1022104882512.

The previous prime is 1022311123319. The next prime is 1022311123333. The reversal of 1022311123321 is 1233211132201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 901481887296 + 120829236025 = 949464^2 + 347605^2 .

It is a cyclic number.

It is not a de Polignac number, because 1022311123321 - 2¹ = 1022311123319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1022311123292 and 1022311123301.

It is not an unprimeable number, because it can be changed into a prime (1022311133321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103112970 + ... + 103122883.

It is an arithmetic number, because the mean of its divisors is an integer number (255629341033).

Almost surely, 2^{1022311123321} is an apocalyptic number.

It is an amenable number.

1022311123321 is a deficient number, since it is larger than the sum of its proper divisors (206240811).

1022311123321 is an equidigital number, since it uses as much as digits as its factorization.

1022311123321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206240810.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1022311123321 its reverse (1233211132201), we get a palindrome (2255522255522).

The spelling of 1022311123321 in words is "one trillion, twenty-two billion, three hundred eleven million, one hundred twenty-three thousand, three hundred twenty-one".