1031321323 has 2 divisors, whose sum is σ = 1031321324. Its totient is φ = 1031321322.

The previous prime is 1031321321. The next prime is 1031321351. The reversal of 1031321323 is 3231231301.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1031321323 - 2¹ = 1031321321 is a prime.

Together with 1031321321, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1031321323.

It is not a weakly prime, because it can be changed into another prime (1031321321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515660661 + 515660662.

It is an arithmetic number, because the mean of its divisors is an integer number (515660662).

Almost surely, 2^1031321323 is an apocalyptic number.

1031321323 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031321323 is an equidigital number, since it uses as much as digits as its factorization.

1031321323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 1031321323 is about 32114.1919250664. The cubic root of 1031321323 is about 1010.3332962034. Note that the first 3 decimals are identical.

Adding to 1031321323 its reverse (3231231301), we get a palindrome (4262552624).

The spelling of 1031321323 in words is "one billion, thirty-one million, three hundred twenty-one thousand, three hundred twenty-three".