1013131223201 has 4 divisors (see below), whose sum is σ = 1013140809492. Its totient is φ = 1013121636912.

The previous prime is 1013131223171. The next prime is 1013131223227. The reversal of 1013131223201 is 1023221313101.

It is a happy number.

1013131223201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 921310102801 + 91821120400 = 959849^2 + 303020^2 .

It is a cyclic number.

It is not a de Polignac number, because 1013131223201 - 2¹⁰ = 1013131222177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1013131273201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4632830 + ... + 4846583.

It is an arithmetic number, because the mean of its divisors is an integer number (253285202373).

Almost surely, 2^{1013131223201} is an apocalyptic number.

It is an amenable number.

1013131223201 is a deficient number, since it is larger than the sum of its proper divisors (9586291).

1013131223201 is an equidigital number, since it uses as much as digits as its factorization.

1013131223201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9586290.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1013131223201 its reverse (1023221313101), we get a palindrome (2036352536302).

The spelling of 1013131223201 in words is "one trillion, thirteen billion, one hundred thirty-one million, two hundred twenty-three thousand, two hundred one".