243141337091 has 2 divisors, whose sum is σ = 243141337092. Its totient is φ = 243141337090.

The previous prime is 243141337069. The next prime is 243141337097. The reversal of 243141337091 is 190733141342.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 243141337091 - 2⁶ = 243141337027 is a prime.

It is not a weakly prime, because it can be changed into another prime (243141337097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121570668545 + 121570668546.

It is an arithmetic number, because the mean of its divisors is an integer number (121570668546).

Almost surely, 2^243141337091 is an apocalyptic number.

243141337091 is a deficient number, since it is larger than the sum of its proper divisors (1).

243141337091 is an equidigital number, since it uses as much as digits as its factorization.

243141337091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 38.

The spelling of 243141337091 in words is "two hundred forty-three billion, one hundred forty-one million, three hundred thirty-seven thousand, ninety-one".