243131024120 has 32 divisors (see below), whose sum is σ = 561829802400. Its totient is φ = 94623965568.

The previous prime is 243131024117. The next prime is 243131024161. The reversal of 243131024120 is 21420131342.

It is a super-2 number, since 2×243131024120² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82137380 + ... + 82140339.

It is an arithmetic number, because the mean of its divisors is an integer number (17557181325).

Almost surely, 2^243131024120 is an apocalyptic number.

243131024120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243131024120 is an abundant number, since it is smaller than the sum of its proper divisors (318698778280).

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

243131024120 is a wasteful number, since it uses less digits than its factorization.

243131024120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164277767 (or 164277763 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 243131024120 its reverse (21420131342), we get a palindrome (264551155462).

The spelling of 243131024120 in words is "two hundred forty-three billion, one hundred thirty-one million, twenty-four thousand, one hundred twenty".