1201133031121 has 2 divisors, whose sum is σ = 1201133031122. Its totient is φ = 1201133031120.

The previous prime is 1201133031113. The next prime is 1201133031151. The reversal of 1201133031121 is 1211303311021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1162599341121 + 38533690000 = 1078239^2 + 196300^2 .

It is a cyclic number.

It is not a de Polignac number, because 1201133031121 - 2³ = 1201133031113 is a prime.

It is not a weakly prime, because it can be changed into another prime (1201133031101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600566515560 + 600566515561.

It is an arithmetic number, because the mean of its divisors is an integer number (600566515561).

Almost surely, 2^{1201133031121} is an apocalyptic number.

It is an amenable number.

1201133031121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201133031121 is an equidigital number, since it uses as much as digits as its factorization.

1201133031121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 1201133031121 its reverse (1211303311021), we get a palindrome (2412436342142).

The spelling of 1201133031121 in words is "one trillion, two hundred one billion, one hundred thirty-three million, thirty-one thousand, one hundred twenty-one".