123202320113 has 2 divisors, whose sum is σ = 123202320114. Its totient is φ = 123202320112.

The previous prime is 123202320089. The next prime is 123202320161. The reversal of 123202320113 is 311023202321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107261490064 + 15940830049 = 327508^2 + 126257^2 .

It is a cyclic number.

It is not a de Polignac number, because 123202320113 - 2¹⁶ = 123202254577 is a prime.

It is a super-2 number, since 2×123202320113² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (123202320413) 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, 61601160056 + 61601160057.

It is an arithmetic number, because the mean of its divisors is an integer number (61601160057).

Almost surely, 2^123202320113 is an apocalyptic number.

It is an amenable number.

123202320113 is a deficient number, since it is larger than the sum of its proper divisors (1).

123202320113 is an equidigital number, since it uses as much as digits as its factorization.

123202320113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 123202320113 its reverse (311023202321), we get a palindrome (434225522434).

The spelling of 123202320113 in words is "one hundred twenty-three billion, two hundred two million, three hundred twenty thousand, one hundred thirteen".