2130121758187 has 2 divisors, whose sum is σ = 2130121758188. Its totient is φ = 2130121758186.

The previous prime is 2130121758077. The next prime is 2130121758199. The reversal of 2130121758187 is 7818571210312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2130121758187 - 2¹⁹ = 2130121233899 is a prime.

It is a super-2 number, since 2×2130121758187² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2130121758587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065060879093 + 1065060879094.

It is an arithmetic number, because the mean of its divisors is an integer number (1065060879094).

Almost surely, 2^{2130121758187} is an apocalyptic number.

2130121758187 is a deficient number, since it is larger than the sum of its proper divisors (1).

2130121758187 is an equidigital number, since it uses as much as digits as its factorization.

2130121758187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 188160, while the sum is 46.

Adding to 2130121758187 its reverse (7818571210312), we get a palindrome (9948692968499).

The spelling of 2130121758187 in words is "two trillion, one hundred thirty billion, one hundred twenty-one million, seven hundred fifty-eight thousand, one hundred eighty-seven".