1156380898201 has 2 divisors, whose sum is σ = 1156380898202. Its totient is φ = 1156380898200.

The previous prime is 1156380898199. The next prime is 1156380898217. The reversal of 1156380898201 is 1028980836511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 835825635225 + 320555262976 = 914235^2 + 566176^2 .

It is a cyclic number.

It is not a de Polignac number, because 1156380898201 - 2¹ = 1156380898199 is a prime.

Together with 1156380898199, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1156380698201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 578190449100 + 578190449101.

It is an arithmetic number, because the mean of its divisors is an integer number (578190449101).

Almost surely, 2^{1156380898201} is an apocalyptic number.

It is an amenable number.

1156380898201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1156380898201 is an equidigital number, since it uses as much as digits as its factorization.

1156380898201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 829440, while the sum is 52.

The spelling of 1156380898201 in words is "one trillion, one hundred fifty-six billion, three hundred eighty million, eight hundred ninety-eight thousand, two hundred one".