243212104415 has 12 divisors (see below), whose sum is σ = 339504244056. Its totient is φ = 166774014288.

The previous prime is 243212104391. The next prime is 243212104423. The reversal of 243212104415 is 514401212342.

It is a happy number.

It is not a de Polignac number, because 243212104415 - 2⁶ = 243212104351 is a prime.

It is a Duffinian number.

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, 496350989 + ... + 496351478.

It is an arithmetic number, because the mean of its divisors is an integer number (28292020338).

Almost surely, 2^243212104415 is an apocalyptic number.

243212104415 is a deficient number, since it is larger than the sum of its proper divisors (96292139641).

243212104415 is an equidigital number, since it uses as much as digits as its factorization.

243212104415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992702486 (or 992702479 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 243212104415 its reverse (514401212342), we get a palindrome (757613316757).

The spelling of 243212104415 in words is "two hundred forty-three billion, two hundred twelve million, one hundred four thousand, four hundred fifteen".