243320231445 has 16 divisors (see below), whose sum is σ = 389434603200. Its totient is φ = 129730045824.

The previous prime is 243320231377. The next prime is 243320231459. The reversal of 243320231445 is 544132023342.

It is not a de Polignac number, because 243320231445 - 2¹⁶ = 243320165909 is a prime.

It is a super-3 number, since 3×243320231445³ (a number of 35 digits) contains 333 as substring.

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, 2497120 + ... + 2592729.

It is an arithmetic number, because the mean of its divisors is an integer number (24339662700).

Almost surely, 2^243320231445 is an apocalyptic number.

It is an amenable number.

243320231445 is a deficient number, since it is larger than the sum of its proper divisors (146114371755).

243320231445 is a wasteful number, since it uses less digits than its factorization.

243320231445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5093044.

The product of its (nonzero) digits is 69120, while the sum is 33.

Adding to 243320231445 its reverse (544132023342), we get a palindrome (787452254787).

The spelling of 243320231445 in words is "two hundred forty-three billion, three hundred twenty million, two hundred thirty-one thousand, four hundred forty-five".