243102621425 has 12 divisors (see below), whose sum is σ = 301470216576. Its totient is φ = 194467280400.

The previous prime is 243102621413. The next prime is 243102621427. The reversal of 243102621425 is 524126201342.

It is a de Polignac number, because none of the positive numbers 2^k-243102621425 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 243102621391 and 243102621400.

It is not an unprimeable number, because it can be changed into a prime (243102621427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29561 + ... + 697910.

It is an arithmetic number, because the mean of its divisors is an integer number (25122518048).

Almost surely, 2^243102621425 is an apocalyptic number.

243102621425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

243102621425 is a deficient number, since it is larger than the sum of its proper divisors (58367595151).

243102621425 is a wasteful number, since it uses less digits than its factorization.

243102621425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740848 (or 740843 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

Adding to 243102621425 its reverse (524126201342), we get a palindrome (767228822767).

The spelling of 243102621425 in words is "two hundred forty-three billion, one hundred two million, six hundred twenty-one thousand, four hundred twenty-five".