202131023322313 has 4 divisors (see below), whose sum is σ = 202132057959828. Its totient is φ = 202129988684800.

The previous prime is 202131023322233. The next prime is 202131023322407. The reversal of 202131023322313 is 313223320131202.

It is a happy number.

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 155626697851849 + 46504325470464 = 12475043^2 + 6819408^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202131023322313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202131023326313) 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, 517025656 + ... + 517416457.

It is an arithmetic number, because the mean of its divisors is an integer number (50533014489957).

Almost surely, 2^{202131023322313} is an apocalyptic number.

It is an amenable number.

202131023322313 is a deficient number, since it is larger than the sum of its proper divisors (1034637515).

202131023322313 is a wasteful number, since it uses less digits than its factorization.

202131023322313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034637514.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 202131023322313 its reverse (313223320131202), we get a palindrome (515354343453515).

The spelling of 202131023322313 in words is "two hundred two trillion, one hundred thirty-one billion, twenty-three million, three hundred twenty-two thousand, three hundred thirteen".