1202331223013 has 4 divisors (see below), whose sum is σ = 1202336369388. Its totient is φ = 1202326076640.

The previous prime is 1202331223007. The next prime is 1202331223073. The reversal of 1202331223013 is 3103221332021.

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 142992128449 + 1059339094564 = 378143^2 + 1029242^2 .

It is a cyclic number.

It is not a de Polignac number, because 1202331223013 - 2⁴ = 1202331222997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1202331223013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202331223073) 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, 2205206 + ... + 2695847.

It is an arithmetic number, because the mean of its divisors is an integer number (300584092347).

Almost surely, 2^{1202331223013} is an apocalyptic number.

It is an amenable number.

1202331223013 is a deficient number, since it is larger than the sum of its proper divisors (5146375).

1202331223013 is an equidigital number, since it uses as much as digits as its factorization.

1202331223013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5146374.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 1202331223013 its reverse (3103221332021), we get a palindrome (4305552555034).

The spelling of 1202331223013 in words is "one trillion, two hundred two billion, three hundred thirty-one million, two hundred twenty-three thousand, thirteen".