13242403357 has 2 divisors, whose sum is σ = 13242403358. Its totient is φ = 13242403356.

The previous prime is 13242403297. The next prime is 13242403397. The reversal of 13242403357 is 75330424231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8749918681 + 4492484676 = 93541^2 + 67026^2 .

It is an emirp because it is prime and its reverse (75330424231) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13242403357 is a prime.

It is a super-2 number, since 2×13242403357² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13242403397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6621201678 + 6621201679.

It is an arithmetic number, because the mean of its divisors is an integer number (6621201679).

Almost surely, 2^13242403357 is an apocalyptic number.

It is an amenable number.

13242403357 is a deficient number, since it is larger than the sum of its proper divisors (1).

13242403357 is an equidigital number, since it uses as much as digits as its factorization.

13242403357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 34.

Adding to 13242403357 its reverse (75330424231), we get a palindrome (88572827588).

The spelling of 13242403357 in words is "thirteen billion, two hundred forty-two million, four hundred three thousand, three hundred fifty-seven".