1031323369 has 2 divisors, whose sum is σ = 1031323370. Its totient is φ = 1031323368.

The previous prime is 1031323361. The next prime is 1031323387. The reversal of 1031323369 is 9633231301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 921911769 + 109411600 = 30363^2 + 10460^2 .

It is a cyclic number.

It is not a de Polignac number, because 1031323369 - 2³ = 1031323361 is a prime.

It is a super-2 number, since 2×1031323369² = 2127255782891020322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1031323369.

It is not a weakly prime, because it can be changed into another prime (1031323361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515661684 + 515661685.

It is an arithmetic number, because the mean of its divisors is an integer number (515661685).

Almost surely, 2^1031323369 is an apocalyptic number.

It is an amenable number.

1031323369 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031323369 is an equidigital number, since it uses as much as digits as its factorization.

1031323369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8748, while the sum is 31.

The square root of 1031323369 is about 32114.2237801258. The cubic root of 1031323369 is about 1010.3339643239. Note that the first 3 decimals are identical.

The spelling of 1031323369 in words is "one billion, thirty-one million, three hundred twenty-three thousand, three hundred sixty-nine".