23123403203413 has 2 divisors, whose sum is σ = 23123403203414. Its totient is φ = 23123403203412.

The previous prime is 23123403203401. The next prime is 23123403203491. The reversal of 23123403203413 is 31430230432132.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20536060178929 + 2587343024484 = 4531673^2 + 1608522^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23123403203413 is a prime.

It is a super-2 number, since 2×23123403203413² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23123403203213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11561701601706 + 11561701601707.

It is an arithmetic number, because the mean of its divisors is an integer number (11561701601707).

Almost surely, 2^{23123403203413} is an apocalyptic number.

It is an amenable number.

23123403203413 is a deficient number, since it is larger than the sum of its proper divisors (1).

23123403203413 is an equidigital number, since it uses as much as digits as its factorization.

23123403203413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 31.

Adding to 23123403203413 its reverse (31430230432132), we get a palindrome (54553633635545).

The spelling of 23123403203413 in words is "twenty-three trillion, one hundred twenty-three billion, four hundred three million, two hundred three thousand, four hundred thirteen".