5105420440381 has 2 divisors, whose sum is σ = 5105420440382. Its totient is φ = 5105420440380.

The previous prime is 5105420440301. The next prime is 5105420440423. The reversal of 5105420440381 is 1830440245015.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3035490814756 + 2069929625625 = 1742266^2 + 1438725^2 .

It is a cyclic number.

It is not a de Polignac number, because 5105420440381 - 2²⁹ = 5104883569469 is a prime.

It is a super-2 number, since 2×5105420440381² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5105420440381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5105420440301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2552710220190 + 2552710220191.

It is an arithmetic number, because the mean of its divisors is an integer number (2552710220191).

Almost surely, 2^{5105420440381} is an apocalyptic number.

It is an amenable number.

5105420440381 is a deficient number, since it is larger than the sum of its proper divisors (1).

5105420440381 is an equidigital number, since it uses as much as digits as its factorization.

5105420440381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 76800, while the sum is 37.

Adding to 5105420440381 its reverse (1830440245015), we get a palindrome (6935860685396).

The spelling of 5105420440381 in words is "five trillion, one hundred five billion, four hundred twenty million, four hundred forty thousand, three hundred eighty-one".