13742356321 has 2 divisors, whose sum is σ = 13742356322. Its totient is φ = 13742356320.

The previous prime is 13742356291. The next prime is 13742356337. The reversal of 13742356321 is 12365324731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11449000000 + 2293356321 = 107000^2 + 47889^2 .

It is a cyclic number.

It is not a de Polignac number, because 13742356321 - 2⁷ = 13742356193 is a prime.

It is not a weakly prime, because it can be changed into another prime (13742356721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6871178160 + 6871178161.

It is an arithmetic number, because the mean of its divisors is an integer number (6871178161).

Almost surely, 2^13742356321 is an apocalyptic number.

It is an amenable number.

13742356321 is a deficient number, since it is larger than the sum of its proper divisors (1).

13742356321 is an equidigital number, since it uses as much as digits as its factorization.

13742356321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 37.

The spelling of 13742356321 in words is "thirteen billion, seven hundred forty-two million, three hundred fifty-six thousand, three hundred twenty-one".