1121201121361 has 2 divisors, whose sum is σ = 1121201121362. Its totient is φ = 1121201121360.

The previous prime is 1121201121347. The next prime is 1121201121421. The reversal of 1121201121361 is 1631211021211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 593776583761 + 527424537600 = 770569^2 + 726240^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121201121361 - 2⁷ = 1121201121233 is a prime.

It is not a weakly prime, because it can be changed into another prime (1121201121331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560600560680 + 560600560681.

It is an arithmetic number, because the mean of its divisors is an integer number (560600560681).

Almost surely, 2^{1121201121361} is an apocalyptic number.

It is an amenable number.

1121201121361 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121201121361 is an equidigital number, since it uses as much as digits as its factorization.

1121201121361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 22.

Adding to 1121201121361 its reverse (1631211021211), we get a palindrome (2752412142572).

The spelling of 1121201121361 in words is "one trillion, one hundred twenty-one billion, two hundred one million, one hundred twenty-one thousand, three hundred sixty-one".