1061320357 has 2 divisors, whose sum is σ = 1061320358. Its totient is φ = 1061320356.

The previous prime is 1061320339. The next prime is 1061320427. The reversal of 1061320357 is 7530231601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 685968481 + 375351876 = 26191^2 + 19374^2 .

It is a cyclic number.

It is not a de Polignac number, because 1061320357 - 2¹¹ = 1061318309 is a prime.

It is a super-2 number, since 2×1061320357² = 2252801800365214898, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1061330357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530660178 + 530660179.

It is an arithmetic number, because the mean of its divisors is an integer number (530660179).

Almost surely, 2^1061320357 is an apocalyptic number.

It is an amenable number.

1061320357 is a deficient number, since it is larger than the sum of its proper divisors (1).

1061320357 is an equidigital number, since it uses as much as digits as its factorization.

1061320357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 1061320357 is about 32577.9121031413. The cubic root of 1061320357 is about 1020.0359967432.

Adding to 1061320357 its reverse (7530231601), we get a palindrome (8591551958).

The spelling of 1061320357 in words is "one billion, sixty-one million, three hundred twenty thousand, three hundred fifty-seven".