243323314323040 has 72 divisors (see below), whose sum is σ = 668704608491472. Its totient is φ = 83425136336640.

The previous prime is 243323314322971. The next prime is 243323314323053. The reversal of 243323314323040 is 40323413323342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15518060676 + ... + 15518076355.

It is an arithmetic number, because the mean of its divisors is an integer number (9287564006826).

Almost surely, 2^{243323314323040} is an apocalyptic number.

243323314323040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243323314323040 is an abundant number, since it is smaller than the sum of its proper divisors (425381294168432).

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

243323314323040 is a wasteful number, since it uses less digits than its factorization.

243323314323040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31036137060 (or 31036137045 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 37.

Adding to 243323314323040 its reverse (40323413323342), we get a palindrome (283646727646382).

The spelling of 243323314323040 in words is "two hundred forty-three trillion, three hundred twenty-three billion, three hundred fourteen million, three hundred twenty-three thousand, forty".