243134150520 has 32 divisors (see below), whose sum is σ = 729402451920. Its totient is φ = 64835773440.

The previous prime is 243134150513. The next prime is 243134150543. The reversal of 243134150520 is 25051431342.

It is a super-2 number, since 2×243134150520² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1013058841 + ... + 1013059080.

Almost surely, 2^243134150520 is an apocalyptic number.

243134150520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243134150520 is an abundant number, since it is smaller than the sum of its proper divisors (486268301400).

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

243134150520 is a wasteful number, since it uses less digits than its factorization.

243134150520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2026117935 (or 2026117931 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 243134150520 its reverse (25051431342), we get a palindrome (268185581862).

The spelling of 243134150520 in words is "two hundred forty-three billion, one hundred thirty-four million, one hundred fifty thousand, five hundred twenty".