12351122513 has 2 divisors, whose sum is σ = 12351122514. Its totient is φ = 12351122512.

The previous prime is 12351122503. The next prime is 12351122561. The reversal of 12351122513 is 31522115321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10479002689 + 1872119824 = 102367^2 + 43268^2 .

It is a cyclic number.

It is not a de Polignac number, because 12351122513 - 2¹⁴ = 12351106129 is a prime.

It is a super-2 number, since 2×12351122513² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12351122503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6175561256 + 6175561257.

It is an arithmetic number, because the mean of its divisors is an integer number (6175561257).

Almost surely, 2^12351122513 is an apocalyptic number.

It is an amenable number.

12351122513 is a deficient number, since it is larger than the sum of its proper divisors (1).

12351122513 is an equidigital number, since it uses as much as digits as its factorization.

12351122513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1800, while the sum is 26.

Adding to 12351122513 its reverse (31522115321), we get a palindrome (43873237834).

The spelling of 12351122513 in words is "twelve billion, three hundred fifty-one million, one hundred twenty-two thousand, five hundred thirteen".