1051223321 has 2 divisors, whose sum is σ = 1051223322. Its totient is φ = 1051223320.

The previous prime is 1051223267. The next prime is 1051223347. The reversal of 1051223321 is 1233221501.

1051223321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1048464400 + 2758921 = 32380^2 + 1661^2 .

It is an emirp because it is prime and its reverse (1233221501) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1051223321 is a prime.

It is a super-2 number, since 2×1051223321² = 2210140941228538082, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1051223293 and 1051223302.

It is not a weakly prime, because it can be changed into another prime (1051223351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525611660 + 525611661.

It is an arithmetic number, because the mean of its divisors is an integer number (525611661).

Almost surely, 2^1051223321 is an apocalyptic number.

It is an amenable number.

1051223321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1051223321 is an equidigital number, since it uses as much as digits as its factorization.

1051223321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1051223321 is about 32422.5742500499. The cubic root of 1051223321 is about 1016.7909271153.

Adding to 1051223321 its reverse (1233221501), we get a palindrome (2284444822).

It can be divided in two parts, 10512 and 23321, that added together give a palindrome (33833).

The spelling of 1051223321 in words is "one billion, fifty-one million, two hundred twenty-three thousand, three hundred twenty-one".