512343031 has 2 divisors, whose sum is σ = 512343032. Its totient is φ = 512343030.

The previous prime is 512342989. The next prime is 512343053. The reversal of 512343031 is 130343215.

It is an a-pointer prime, because the next prime (512343053) can be obtained adding 512343031 to its sum of digits (22).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-512343031 is a prime.

It is a super-2 number, since 2×512343031² = 524990762828533922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 512342993 and 512343011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (512344031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256171515 + 256171516.

It is an arithmetic number, because the mean of its divisors is an integer number (256171516).

Almost surely, 2^512343031 is an apocalyptic number.

512343031 is a deficient number, since it is larger than the sum of its proper divisors (1).

512343031 is an equidigital number, since it uses as much as digits as its factorization.

512343031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 512343031 is about 22634.9957146009. The cubic root of 512343031 is about 800.1786220939.

Adding to 512343031 its reverse (130343215), we get a palindrome (642686246).

The spelling of 512343031 in words is "five hundred twelve million, three hundred forty-three thousand, thirty-one".