243121401300 has 72 divisors (see below), whose sum is σ = 744809579136. Its totient is φ = 61018703360.

The previous prime is 243121401253. The next prime is 243121401329. The reversal of 243121401300 is 3104121342.

243121401300 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 23830332 + ... + 23840531.

It is an arithmetic number, because the mean of its divisors is an integer number (10344577488).

Almost surely, 2^243121401300 is an apocalyptic number.

243121401300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243121401300 is an abundant number, since it is smaller than the sum of its proper divisors (501688177836).

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

243121401300 is a wasteful number, since it uses less digits than its factorization.

243121401300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47670897 (or 47670890 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 243121401300 its reverse (3104121342), we get a palindrome (246225522642).

The spelling of 243121401300 in words is "two hundred forty-three billion, one hundred twenty-one million, four hundred one thousand, three hundred".