1750131216121 has 2 divisors, whose sum is σ = 1750131216122. Its totient is φ = 1750131216120.

The previous prime is 1750131216079. The next prime is 1750131216157. The reversal of 1750131216121 is 1216121310571.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1184309827600 + 565821388521 = 1088260^2 + 752211^2 .

It is an emirp because it is prime and its reverse (1216121310571) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1750131216121 - 2²⁹ = 1749594345209 is a prime.

It is not a weakly prime, because it can be changed into another prime (1750131216721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 875065608060 + 875065608061.

It is an arithmetic number, because the mean of its divisors is an integer number (875065608061).

Almost surely, 2^{1750131216121} is an apocalyptic number.

It is an amenable number.

1750131216121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1750131216121 is an equidigital number, since it uses as much as digits as its factorization.

1750131216121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 31.

Adding to 1750131216121 its reverse (1216121310571), we get a palindrome (2966252526692).

The spelling of 1750131216121 in words is "one trillion, seven hundred fifty billion, one hundred thirty-one million, two hundred sixteen thousand, one hundred twenty-one".