3129847133513 has 2 divisors, whose sum is σ = 3129847133514. Its totient is φ = 3129847133512.

The previous prime is 3129847133449. The next prime is 3129847133531. The reversal of 3129847133513 is 3153317489213.

Together with next prime (3129847133531) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1859274056704 + 1270573076809 = 1363552^2 + 1127197^2 .

It is a cyclic number.

It is not a de Polignac number, because 3129847133513 - 2⁶ = 3129847133449 is a prime.

It is not a weakly prime, because it can be changed into another prime (3129847132513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1564923566756 + 1564923566757.

It is an arithmetic number, because the mean of its divisors is an integer number (1564923566757).

Almost surely, 2^{3129847133513} is an apocalyptic number.

It is an amenable number.

3129847133513 is a deficient number, since it is larger than the sum of its proper divisors (1).

3129847133513 is an equidigital number, since it uses as much as digits as its factorization.

3129847133513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1632960, while the sum is 50.

The spelling of 3129847133513 in words is "three trillion, one hundred twenty-nine billion, eight hundred forty-seven million, one hundred thirty-three thousand, five hundred thirteen".