243113540511 has 8 divisors (see below), whose sum is σ = 324583016704. Its totient is φ = 161859879000.

The previous prime is 243113540489. The next prime is 243113540533. The reversal of 243113540511 is 115045311342.

It is an interprime number because it is at equal distance from previous prime (243113540489) and next prime (243113540533).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 243113540511 - 2⁵ = 243113540479 is a prime.

It is a super-2 number, since 2×243113540511² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243113520511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53951041 + ... + 53955546.

It is an arithmetic number, because the mean of its divisors is an integer number (40572877088).

Almost surely, 2^243113540511 is an apocalyptic number.

243113540511 is a deficient number, since it is larger than the sum of its proper divisors (81469476193).

243113540511 is a wasteful number, since it uses less digits than its factorization.

243113540511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107907341.

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 243113540511 its reverse (115045311342), we get a palindrome (358158851853).

The spelling of 243113540511 in words is "two hundred forty-three billion, one hundred thirteen million, five hundred forty thousand, five hundred eleven".