43425313513 has 2 divisors, whose sum is σ = 43425313514. Its totient is φ = 43425313512.

The previous prime is 43425313511. The next prime is 43425313571. The reversal of 43425313513 is 31531352434.

43425313513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39327649344 + 4097664169 = 198312^2 + 64013^2 .

It is a cyclic number.

It is not a de Polignac number, because 43425313513 - 2¹ = 43425313511 is a prime.

Together with 43425313511, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (43425313511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21712656756 + 21712656757.

It is an arithmetic number, because the mean of its divisors is an integer number (21712656757).

Almost surely, 2^43425313513 is an apocalyptic number.

It is an amenable number.

43425313513 is a deficient number, since it is larger than the sum of its proper divisors (1).

43425313513 is an equidigital number, since it uses as much as digits as its factorization.

43425313513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64800, while the sum is 34.

Adding to 43425313513 its reverse (31531352434), we get a palindrome (74956665947).

The spelling of 43425313513 in words is "forty-three billion, four hundred twenty-five million, three hundred thirteen thousand, five hundred thirteen".