513241423 has 2 divisors, whose sum is σ = 513241424. Its totient is φ = 513241422.

The previous prime is 513241409. The next prime is 513241427. The reversal of 513241423 is 324142315.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-513241423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (513241427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256620711 + 256620712.

It is an arithmetic number, because the mean of its divisors is an integer number (256620712).

Almost surely, 2^513241423 is an apocalyptic number.

513241423 is a deficient number, since it is larger than the sum of its proper divisors (1).

513241423 is an equidigital number, since it uses as much as digits as its factorization.

513241423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 25.

The square root of 513241423 is about 22654.8322218462. The cubic root of 513241423 is about 800.6460526088.

Adding to 513241423 its reverse (324142315), we get a palindrome (837383738).

The spelling of 513241423 in words is "five hundred thirteen million, two hundred forty-one thousand, four hundred twenty-three".