1013253443 has 2 divisors, whose sum is σ = 1013253444. Its totient is φ = 1013253442.

The previous prime is 1013253421. The next prime is 1013253457. The reversal of 1013253443 is 3443523101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1013253443 - 2¹⁸ = 1012991299 is a prime.

It is not a weakly prime, because it can be changed into another prime (1013253403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506626721 + 506626722.

It is an arithmetic number, because the mean of its divisors is an integer number (506626722).

Almost surely, 2^1013253443 is an apocalyptic number.

1013253443 is a deficient number, since it is larger than the sum of its proper divisors (1).

1013253443 is an equidigital number, since it uses as much as digits as its factorization.

1013253443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 1013253443 is about 31831.6421662471. The cubic root of 1013253443 is about 1004.3984396971.

Adding to 1013253443 its reverse (3443523101), we get a palindrome (4456776544).

The spelling of 1013253443 in words is "one billion, thirteen million, two hundred fifty-three thousand, four hundred forty-three".