243131521062 has 8 divisors (see below), whose sum is σ = 486263042136. Its totient is φ = 81043840352.

The previous prime is 243131521057. The next prime is 243131521081. The reversal of 243131521062 is 260125131342.

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

243131521062 is an admirable number.

It is a super-2 number, since 2×243131521062² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20260960083 + ... + 20260960094.

It is an arithmetic number, because the mean of its divisors is an integer number (60782880267).

Almost surely, 2^243131521062 is an apocalyptic number.

243131521062 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

243131521062 is a wasteful number, since it uses less digits than its factorization.

243131521062 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40521920182.

The product of its (nonzero) digits is 8640, while the sum is 30.

The spelling of 243131521062 in words is "two hundred forty-three billion, one hundred thirty-one million, five hundred twenty-one thousand, sixty-two".