1013312243 has 8 divisors (see below), whose sum is σ = 1037559600. Its totient is φ = 989095968.

The previous prime is 1013312233. The next prime is 1013312263. The reversal of 1013312243 is 3422133101.

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

It is a cyclic number.

It is not a de Polignac number, because 1013312243 - 2¹² = 1013308147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1013312203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66593 + ... + 80381.

It is an arithmetic number, because the mean of its divisors is an integer number (129694950).

Almost surely, 2^1013312243 is an apocalyptic number.

1013312243 is a deficient number, since it is larger than the sum of its proper divisors (24247357).

1013312243 is a wasteful number, since it uses less digits than its factorization.

1013312243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15541.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1013312243 is about 31832.5657621248. The cubic root of 1013312243 is about 1004.4178680334.

Adding to 1013312243 its reverse (3422133101), we get a palindrome (4435445344).

The spelling of 1013312243 in words is "one billion, thirteen million, three hundred twelve thousand, two hundred forty-three".