1243233251013 has 8 divisors (see below), whose sum is σ = 1785155437408. Its totient is φ = 765066615984.

The previous prime is 1243233250999. The next prime is 1243233251027. The reversal of 1243233251013 is 3101523323421.

It is an interprime number because it is at equal distance from previous prime (1243233250999) and next prime (1243233251027).

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

It is not a de Polignac number, because 1243233251013 - 2⁴ = 1243233250997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243233251033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15938887795 + ... + 15938887872.

It is an arithmetic number, because the mean of its divisors is an integer number (223144429676).

Almost surely, 2^{1243233251013} is an apocalyptic number.

1243233251013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1243233251013 is a deficient number, since it is larger than the sum of its proper divisors (541922186395).

1243233251013 is a wasteful number, since it uses less digits than its factorization.

1243233251013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31877775683.

The product of its (nonzero) digits is 12960, while the sum is 30.

Adding to 1243233251013 its reverse (3101523323421), we get a palindrome (4344756574434).

The spelling of 1243233251013 in words is "one trillion, two hundred forty-three billion, two hundred thirty-three million, two hundred fifty-one thousand, thirteen".