1156098132121 has 2 divisors, whose sum is σ = 1156098132122. Its totient is φ = 1156098132120.

The previous prime is 1156098132107. The next prime is 1156098132151. The reversal of 1156098132121 is 1212318906511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 844862458896 + 311235673225 = 919164^2 + 557885^2 .

It is a cyclic number.

It is not a de Polignac number, because 1156098132121 - 2²³ = 1156089743513 is a prime.

It is not a weakly prime, because it can be changed into another prime (1156098132151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 578049066060 + 578049066061.

It is an arithmetic number, because the mean of its divisors is an integer number (578049066061).

Almost surely, 2^{1156098132121} is an apocalyptic number.

It is an amenable number.

1156098132121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1156098132121 is an equidigital number, since it uses as much as digits as its factorization.

1156098132121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 40.

The spelling of 1156098132121 in words is "one trillion, one hundred fifty-six billion, ninety-eight million, one hundred thirty-two thousand, one hundred twenty-one".