243020123250 has 64 divisors (see below), whose sum is σ = 627494774400. Its totient is φ = 62570692800.

The previous prime is 243020123237. The next prime is 243020123251. The reversal of 243020123250 is 52321020342.

It is a self number, because there is not a number n which added to its sum of digits gives 243020123250.

It is not an unprimeable number, because it can be changed into a prime (243020123251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5564920 + ... + 5608419.

It is an arithmetic number, because the mean of its divisors is an integer number (9804605850).

Almost surely, 2^243020123250 is an apocalyptic number.

243020123250 is an abundant number, since it is smaller than the sum of its proper divisors (384474651150).

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

243020123250 is a wasteful number, since it uses less digits than its factorization.

243020123250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11173388 (or 11173378 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

Adding to 243020123250 its reverse (52321020342), we get a palindrome (295341143592).

The spelling of 243020123250 in words is "two hundred forty-three billion, twenty million, one hundred twenty-three thousand, two hundred fifty".