202113100331 has 2 divisors, whose sum is σ = 202113100332. Its totient is φ = 202113100330.

The previous prime is 202113100313. The next prime is 202113100339. The reversal of 202113100331 is 133001311202.

202113100331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (202113100313) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202113100331 is a prime.

It is a super-2 number, since 2×202113100331² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (202113100339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101056550165 + 101056550166.

It is an arithmetic number, because the mean of its divisors is an integer number (101056550166).

Almost surely, 2^202113100331 is an apocalyptic number.

202113100331 is a deficient number, since it is larger than the sum of its proper divisors (1).

202113100331 is an equidigital number, since it uses as much as digits as its factorization.

202113100331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 202113100331 its reverse (133001311202), we get a palindrome (335114411533).

The spelling of 202113100331 in words is "two hundred two billion, one hundred thirteen million, one hundred thousand, three hundred thirty-one".