1201113020113 has 2 divisors, whose sum is σ = 1201113020114. Its totient is φ = 1201113020112.

The previous prime is 1201113020069. The next prime is 1201113020123. The reversal of 1201113020113 is 3110203111021.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 648100672209 + 553012347904 = 805047^2 + 743648^2 .

It is an emirp because it is prime and its reverse (3110203111021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1201113020113 - 2²¹ = 1201110922961 is a prime.

It is not a weakly prime, because it can be changed into another prime (1201113020123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600556510056 + 600556510057.

It is an arithmetic number, because the mean of its divisors is an integer number (600556510057).

Almost surely, 2^{1201113020113} is an apocalyptic number.

It is an amenable number.

1201113020113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201113020113 is an equidigital number, since it uses as much as digits as its factorization.

1201113020113 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 16.

Adding to 1201113020113 its reverse (3110203111021), we get a palindrome (4311316131134).

The spelling of 1201113020113 in words is "one trillion, two hundred one billion, one hundred thirteen million, twenty thousand, one hundred thirteen".