243122332131 has 48 divisors (see below), whose sum is σ = 405335384064. Its totient is φ = 137551024512.

The previous prime is 243122332121. The next prime is 243122332147. The reversal of 243122332131 is 131233221342.

243122332131 is a `hidden beast` number, since 2 + 4 + 312 + 2 + 332 + 13 + 1 = 666.

243122332131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 243122332131 - 2¹⁹ = 243121807843 is a prime.

It is a super-2 number, since 2×243122332131² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 243122332095 and 243122332104.

It is not an unprimeable number, because it can be changed into a prime (243122332121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3268900 + ... + 3342446.

It is an arithmetic number, because the mean of its divisors is an integer number (8444487168).

Almost surely, 2^243122332131 is an apocalyptic number.

243122332131 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

243122332131 is a deficient number, since it is larger than the sum of its proper divisors (162213051933).

243122332131 is a wasteful number, since it uses less digits than its factorization.

243122332131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74080 (or 74077 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

Adding to 243122332131 its reverse (131233221342), we get a palindrome (374355553473).

The spelling of 243122332131 in words is "two hundred forty-three billion, one hundred twenty-two million, three hundred thirty-two thousand, one hundred thirty-one".