513124143031 has 2 divisors, whose sum is σ = 513124143032. Its totient is φ = 513124143030.

The previous prime is 513124143011. The next prime is 513124143079. The reversal of 513124143031 is 130341421315.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 513124143031 - 2⁹ = 513124142519 is a prime.

It is a super-2 number, since 2×513124143031² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (513124143011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256562071515 + 256562071516.

It is an arithmetic number, because the mean of its divisors is an integer number (256562071516).

Almost surely, 2^513124143031 is an apocalyptic number.

513124143031 is a deficient number, since it is larger than the sum of its proper divisors (1).

513124143031 is an equidigital number, since it uses as much as digits as its factorization.

513124143031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 513124143031 its reverse (130341421315), we get a palindrome (643465564346).

The spelling of 513124143031 in words is "five hundred thirteen billion, one hundred twenty-four million, one hundred forty-three thousand, thirty-one".