243201001125 has 16 divisors (see below), whose sum is σ = 404686466496. Its totient is φ = 129707200400.

The previous prime is 243201001103. The next prime is 243201001139. The reversal of 243201001125 is 521100102342.

It is not a de Polignac number, because 243201001125 - 2⁹ = 243201000613 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 324267627 + ... + 324268376.

It is an arithmetic number, because the mean of its divisors is an integer number (25292904156).

Almost surely, 2^243201001125 is an apocalyptic number.

243201001125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

243201001125 is a deficient number, since it is larger than the sum of its proper divisors (161485465371).

243201001125 is an equidigital number, since it uses as much as digits as its factorization.

243201001125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648536021 (or 648536011 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 243201001125 its reverse (521100102342), we get a palindrome (764301103467).

The spelling of 243201001125 in words is "two hundred forty-three billion, two hundred one million, one thousand, one hundred twenty-five".