243112451339 has 2 divisors, whose sum is σ = 243112451340. Its totient is φ = 243112451338.

The previous prime is 243112451321. The next prime is 243112451381. The reversal of 243112451339 is 933154211342.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 243112451339 - 2¹² = 243112447243 is a prime.

It is not a weakly prime, because it can be changed into another prime (243112451039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121556225669 + 121556225670.

It is an arithmetic number, because the mean of its divisors is an integer number (121556225670).

Almost surely, 2^243112451339 is an apocalyptic number.

243112451339 is a deficient number, since it is larger than the sum of its proper divisors (1).

243112451339 is an equidigital number, since it uses as much as digits as its factorization.

243112451339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 38.

The spelling of 243112451339 in words is "two hundred forty-three billion, one hundred twelve million, four hundred fifty-one thousand, three hundred thirty-nine".