513234331 has 2 divisors, whose sum is σ = 513234332. Its totient is φ = 513234330.

The previous prime is 513234299. The next prime is 513234343. The reversal of 513234331 is 133432315.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 513234331 - 2⁵ = 513234299 is a prime.

It is a super-2 number, since 2×513234331² = 526818957034035122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 513234296 and 513234305.

It is not a weakly prime, because it can be changed into another prime (513274331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256617165 + 256617166.

It is an arithmetic number, because the mean of its divisors is an integer number (256617166).

Almost surely, 2^513234331 is an apocalyptic number.

513234331 is a deficient number, since it is larger than the sum of its proper divisors (1).

513234331 is an equidigital number, since it uses as much as digits as its factorization.

513234331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 25.

The square root of 513234331 is about 22654.6756984072. The cubic root of 513234331 is about 800.6423648004.

Adding to 513234331 its reverse (133432315), we get a palindrome (646666646).

The spelling of 513234331 in words is "five hundred thirteen million, two hundred thirty-four thousand, three hundred thirty-one".