243030100931 has 2 divisors, whose sum is σ = 243030100932. Its totient is φ = 243030100930.

The previous prime is 243030100891. The next prime is 243030100979. The reversal of 243030100931 is 139001030342.

It is a happy number.

243030100931 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 243030100931 - 2²⁶ = 242962992067 is a prime.

It is a super-2 number, since 2×243030100931² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 243030100931.

It is not a weakly prime, because it can be changed into another prime (243030100531) 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 as a sum of consecutive naturals, namely, 121515050465 + 121515050466.

It is an arithmetic number, because the mean of its divisors is an integer number (121515050466).

Almost surely, 2^243030100931 is an apocalyptic number.

243030100931 is a deficient number, since it is larger than the sum of its proper divisors (1).

243030100931 is an equidigital number, since it uses as much as digits as its factorization.

243030100931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 26.

The spelling of 243030100931 in words is "two hundred forty-three billion, thirty million, one hundred thousand, nine hundred thirty-one".