1201023113 has 2 divisors, whose sum is σ = 1201023114. Its totient is φ = 1201023112.

The previous prime is 1201023091. The next prime is 1201023133. The reversal of 1201023113 is 3113201021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 918514249 + 282508864 = 30307^2 + 16808^2 .

It is a cyclic number.

It is not a de Polignac number, because 1201023113 - 2²⁴ = 1184245897 is a prime.

It is not a weakly prime, because it can be changed into another prime (1201023133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600511556 + 600511557.

It is an arithmetic number, because the mean of its divisors is an integer number (600511557).

Almost surely, 2^1201023113 is an apocalyptic number.

It is an amenable number.

1201023113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201023113 is an equidigital number, since it uses as much as digits as its factorization.

1201023113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1201023113 is about 34655.7803692256. The cubic root of 1201023113 is about 1062.9604888929.

Adding to 1201023113 its reverse (3113201021), we get a palindrome (4314224134).

The spelling of 1201023113 in words is "one billion, two hundred one million, twenty-three thousand, one hundred thirteen".