1013311243 has 8 divisors (see below), whose sum is σ = 1198003680. Its totient is φ = 838602240.

The previous prime is 1013311241. The next prime is 1013311279. The reversal of 1013311243 is 3421133101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1013311243 - 2¹ = 1013311241 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1013311243.

It is not an unprimeable number, because it can be changed into a prime (1013311241) 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 in 7 ways as a sum of consecutive naturals, for example, 2495638 + ... + 2496043.

It is an arithmetic number, because the mean of its divisors is an integer number (149750460).

Almost surely, 2^1013311243 is an apocalyptic number.

1013311243 is a deficient number, since it is larger than the sum of its proper divisors (184692437).

1013311243 is an equidigital number, since it uses as much as digits as its factorization.

1013311243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4991717.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1013311243 is about 31832.5500549359. The cubic root of 1013311243 is about 1004.4175376258.

Adding to 1013311243 its reverse (3421133101), we get a palindrome (4434444344).

The spelling of 1013311243 in words is "one billion, thirteen million, three hundred eleven thousand, two hundred forty-three".