1231050550393 has 2 divisors, whose sum is σ = 1231050550394. Its totient is φ = 1231050550392.

The previous prime is 1231050550349. The next prime is 1231050550399. The reversal of 1231050550393 is 3930550501321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 686697283584 + 544353266809 = 828672^2 + 737803^2 .

It is a cyclic number.

It is not a de Polignac number, because 1231050550393 - 2⁹ = 1231050549881 is a prime.

It is not a weakly prime, because it can be changed into another prime (1231050550399) 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, 615525275196 + 615525275197.

It is an arithmetic number, because the mean of its divisors is an integer number (615525275197).

Almost surely, 2^{1231050550393} is an apocalyptic number.

It is an amenable number.

1231050550393 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231050550393 is an equidigital number, since it uses as much as digits as its factorization.

1231050550393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60750, while the sum is 37.

The spelling of 1231050550393 in words is "one trillion, two hundred thirty-one billion, fifty million, five hundred fifty thousand, three hundred ninety-three".