1231050550349 has 2 divisors, whose sum is σ = 1231050550350. Its totient is φ = 1231050550348.

The previous prime is 1231050550307. The next prime is 1231050550393. The reversal of 1231050550349 is 9430550501321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1200580404100 + 30470146249 = 1095710^2 + 174557^2 .

It is a cyclic number.

It is not a de Polignac number, because 1231050550349 - 2¹⁶ = 1231050484813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1231050550399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615525275174 + 615525275175.

It is an arithmetic number, because the mean of its divisors is an integer number (615525275175).

Almost surely, 2^{1231050550349} is an apocalyptic number.

It is an amenable number.

1231050550349 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231050550349 is an equidigital number, since it uses as much as digits as its factorization.

1231050550349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81000, while the sum is 38.

The spelling of 1231050550349 in words is "one trillion, two hundred thirty-one billion, fifty million, five hundred fifty thousand, three hundred forty-nine".