1231050550307 has 2 divisors, whose sum is σ = 1231050550308. Its totient is φ = 1231050550306.

The previous prime is 1231050550283. The next prime is 1231050550349. The reversal of 1231050550307 is 7030550501321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1231050550307 - 2¹⁰ = 1231050549283 is a prime.

It is a super-2 number, since 2×1231050550307² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1231050520307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615525275153 + 615525275154.

It is an arithmetic number, because the mean of its divisors is an integer number (615525275154).

Almost surely, 2^{1231050550307} is an apocalyptic number.

1231050550307 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231050550307 is an equidigital number, since it uses as much as digits as its factorization.

1231050550307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15750, while the sum is 32.

The spelling of 1231050550307 in words is "one trillion, two hundred thirty-one billion, fifty million, five hundred fifty thousand, three hundred seven".