128613033387253 has 2 divisors, whose sum is σ = 128613033387254. Its totient is φ = 128613033387252.

The previous prime is 128613033387193. The next prime is 128613033387257. The reversal of 128613033387253 is 352783330316821.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69618698063524 + 58994335323729 = 8343782^2 + 7680777^2 .

It is an emirp because it is prime and its reverse (352783330316821) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-128613033387253 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 128613033387194 and 128613033387203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128613033387257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64306516693626 + 64306516693627.

It is an arithmetic number, because the mean of its divisors is an integer number (64306516693627).

Almost surely, 2^{128613033387253} is an apocalyptic number.

It is an amenable number.

128613033387253 is a deficient number, since it is larger than the sum of its proper divisors (1).

128613033387253 is an equidigital number, since it uses as much as digits as its factorization.

128613033387253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13063680, while the sum is 55.

The spelling of 128613033387253 in words is "one hundred twenty-eight trillion, six hundred thirteen billion, thirty-three million, three hundred eighty-seven thousand, two hundred fifty-three".