513422311 has 2 divisors, whose sum is σ = 513422312. Its totient is φ = 513422310.

The previous prime is 513422309. The next prime is 513422333. The reversal of 513422311 is 113224315.

It is a happy number.

It is an a-pointer prime, because the next prime (513422333) can be obtained adding 513422311 to its sum of digits (22).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 513422311 - 2¹ = 513422309 is a prime.

Together with 513422309, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (513422111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256711155 + 256711156.

It is an arithmetic number, because the mean of its divisors is an integer number (256711156).

Almost surely, 2^513422311 is an apocalyptic number.

513422311 is a deficient number, since it is larger than the sum of its proper divisors (1).

513422311 is an equidigital number, since it uses as much as digits as its factorization.

513422311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 720, while the sum is 22.

The square root of 513422311 is about 22658.8241310091. The cubic root of 513422311 is about 800.7401020792.

Adding to 513422311 its reverse (113224315), we get a palindrome (626646626).

The spelling of 513422311 in words is "five hundred thirteen million, four hundred twenty-two thousand, three hundred eleven".