1158121621147 has 2 divisors, whose sum is σ = 1158121621148. Its totient is φ = 1158121621146.

The previous prime is 1158121621133. The next prime is 1158121621157. The reversal of 1158121621147 is 7411261218511.

It is a strong prime.

It is an emirp because it is prime and its reverse (7411261218511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1158121621147 - 2¹⁹ = 1158121096859 is a prime.

It is not a weakly prime, because it can be changed into another prime (1158121621117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 579060810573 + 579060810574.

It is an arithmetic number, because the mean of its divisors is an integer number (579060810574).

Almost surely, 2^{1158121621147} is an apocalyptic number.

1158121621147 is a deficient number, since it is larger than the sum of its proper divisors (1).

1158121621147 is an equidigital number, since it uses as much as digits as its factorization.

1158121621147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26880, while the sum is 40.

Adding to 1158121621147 its reverse (7411261218511), we get a palindrome (8569382839658).

The spelling of 1158121621147 in words is "one trillion, one hundred fifty-eight billion, one hundred twenty-one million, six hundred twenty-one thousand, one hundred forty-seven".