1210232011489 has 2 divisors, whose sum is σ = 1210232011490. Its totient is φ = 1210232011488.

The previous prime is 1210232011477. The next prime is 1210232011567. The reversal of 1210232011489 is 9841102320121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1089967320225 + 120264691264 = 1044015^2 + 346792^2 .

It is an emirp because it is prime and its reverse (9841102320121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1210232011489 is a prime.

It is a super-2 number, since 2×1210232011489² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1210232011589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605116005744 + 605116005745.

It is an arithmetic number, because the mean of its divisors is an integer number (605116005745).

Almost surely, 2^{1210232011489} is an apocalyptic number.

It is an amenable number.

1210232011489 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210232011489 is an equidigital number, since it uses as much as digits as its factorization.

1210232011489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 34.

The spelling of 1210232011489 in words is "one trillion, two hundred ten billion, two hundred thirty-two million, eleven thousand, four hundred eighty-nine".