1243442232402 has 8 divisors (see below), whose sum is σ = 2486884464816. Its totient is φ = 414480744132.

The previous prime is 1243442232397. The next prime is 1243442232449. The reversal of 1243442232402 is 2042322443421.

It is a happy number.

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

1243442232402 is an admirable number.

It is a super-2 number, since 2×1243442232402² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

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, 103620186028 + ... + 103620186039.

It is an arithmetic number, because the mean of its divisors is an integer number (310860558102).

Almost surely, 2^{1243442232402} is an apocalyptic number.

1243442232402 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1243442232402 is a wasteful number, since it uses less digits than its factorization.

1243442232402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207240372072.

The product of its (nonzero) digits is 73728, while the sum is 33.

Adding to 1243442232402 its reverse (2042322443421), we get a palindrome (3285764675823).

The spelling of 1243442232402 in words is "one trillion, two hundred forty-three billion, four hundred forty-two million, two hundred thirty-two thousand, four hundred two".