513231205027 has 2 divisors, whose sum is σ = 513231205028. Its totient is φ = 513231205026.

The previous prime is 513231204881. The next prime is 513231205033. The reversal of 513231205027 is 720502132315.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-513231205027 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 513231205027.

It is not a weakly prime, because it can be changed into another prime (513231209027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256615602513 + 256615602514.

It is an arithmetic number, because the mean of its divisors is an integer number (256615602514).

Almost surely, 2^513231205027 is an apocalyptic number.

513231205027 is a deficient number, since it is larger than the sum of its proper divisors (1).

513231205027 is an equidigital number, since it uses as much as digits as its factorization.

513231205027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12600, while the sum is 31.

The spelling of 513231205027 in words is "five hundred thirteen billion, two hundred thirty-one million, two hundred five thousand, twenty-seven".