1243014123313 has 4 divisors (see below), whose sum is σ = 1243209602880. Its totient is φ = 1242818643748.

The previous prime is 1243014123311. The next prime is 1243014123347. The reversal of 1243014123313 is 3133214103421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1243014123313 - 2¹ = 1243014123311 is a prime.

It is a super-2 number, since 2×1243014123313² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1243014123311) 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 3 ways as a sum of consecutive naturals, for example, 97730245 + ... + 97742962.

It is an arithmetic number, because the mean of its divisors is an integer number (310802400720).

Almost surely, 2^{1243014123313} is an apocalyptic number.

It is an amenable number.

1243014123313 is a deficient number, since it is larger than the sum of its proper divisors (195479567).

1243014123313 is an equidigital number, since it uses as much as digits as its factorization.

1243014123313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195479566.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 1243014123313 its reverse (3133214103421), we get a palindrome (4376228226734).

The spelling of 1243014123313 in words is "one trillion, two hundred forty-three billion, fourteen million, one hundred twenty-three thousand, three hundred thirteen".