20310123413 has 2 divisors, whose sum is σ = 20310123414. Its totient is φ = 20310123412.

The previous prime is 20310123391. The next prime is 20310123419. The reversal of 20310123413 is 31432101302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19403932804 + 906190609 = 139298^2 + 30103^2 .

It is a cyclic number.

It is not a de Polignac number, because 20310123413 - 2¹⁰ = 20310122389 is a prime.

It is a super-2 number, since 2×20310123413² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20310123419) 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, 10155061706 + 10155061707.

It is an arithmetic number, because the mean of its divisors is an integer number (10155061707).

Almost surely, 2^20310123413 is an apocalyptic number.

It is an amenable number.

20310123413 is a deficient number, since it is larger than the sum of its proper divisors (1).

20310123413 is an equidigital number, since it uses as much as digits as its factorization.

20310123413 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 20310123413 its reverse (31432101302), we get a palindrome (51742224715).

The spelling of 20310123413 in words is "twenty billion, three hundred ten million, one hundred twenty-three thousand, four hundred thirteen".