243134123031 has 24 divisors (see below), whose sum is σ = 355182122880. Its totient is φ = 160249056000.

The previous prime is 243134123003. The next prime is 243134123039. The reversal of 243134123031 is 130321431342.

It is a happy number.

243134123031 is a `hidden beast` number, since 2 + 4 + 313 + 41 + 2 + 303 + 1 = 666.

It is not a de Polignac number, because 243134123031 - 2¹⁸ = 243133860887 is a prime.

It is a super-2 number, since 2×243134123031² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 243134122986 and 243134123004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243134123039) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10522411 + ... + 10545491.

It is an arithmetic number, because the mean of its divisors is an integer number (14799255120).

Almost surely, 2^243134123031 is an apocalyptic number.

243134123031 is a deficient number, since it is larger than the sum of its proper divisors (112047999849).

243134123031 is a wasteful number, since it uses less digits than its factorization.

243134123031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36327 (or 36324 counting only the distinct ones).

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

Adding to 243134123031 its reverse (130321431342), we get a palindrome (373455554373).

The spelling of 243134123031 in words is "two hundred forty-three billion, one hundred thirty-four million, one hundred twenty-three thousand, thirty-one".