5123235420049 has 2 divisors, whose sum is σ = 5123235420050. Its totient is φ = 5123235420048.

The previous prime is 5123235420007. The next prime is 5123235420131. The reversal of 5123235420049 is 9400245323215.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5109150477649 + 14084942400 = 2260343^2 + 118680^2 .

It is a cyclic number.

It is not a de Polignac number, because 5123235420049 - 2³¹ = 5121087936401 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5123235419993 and 5123235420020.

It is not a weakly prime, because it can be changed into another prime (5123239420049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2561617710024 + 2561617710025.

It is an arithmetic number, because the mean of its divisors is an integer number (2561617710025).

Almost surely, 2^{5123235420049} is an apocalyptic number.

It is an amenable number.

5123235420049 is a deficient number, since it is larger than the sum of its proper divisors (1).

5123235420049 is an equidigital number, since it uses as much as digits as its factorization.

5123235420049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 259200, while the sum is 40.

The spelling of 5123235420049 in words is "five trillion, one hundred twenty-three billion, two hundred thirty-five million, four hundred twenty thousand, forty-nine".