243232231555 has 16 divisors (see below), whose sum is σ = 293266157184. Its totient is φ = 193662576000.

The previous prime is 243232231547. The next prime is 243232231577. The reversal of 243232231555 is 555132232342.

It is not a de Polignac number, because 243232231555 - 2³ = 243232231547 is a prime.

It is a Duffinian 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, 989677 + ... + 1210753.

It is an arithmetic number, because the mean of its divisors is an integer number (18329134824).

Almost surely, 2^243232231555 is an apocalyptic number.

243232231555 is a deficient number, since it is larger than the sum of its proper divisors (50033925629).

243232231555 is a wasteful number, since it uses less digits than its factorization.

243232231555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222126.

The product of its digits is 216000, while the sum is 37.

Adding to 243232231555 its reverse (555132232342), we get a palindrome (798364463897).

The spelling of 243232231555 in words is "two hundred forty-three billion, two hundred thirty-two million, two hundred thirty-one thousand, five hundred fifty-five".