1308077521357 has 2 divisors, whose sum is σ = 1308077521358. Its totient is φ = 1308077521356.

The previous prime is 1308077521301. The next prime is 1308077521427. The reversal of 1308077521357 is 7531257708031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1169644413001 + 138433108356 = 1081501^2 + 372066^2 .

It is a cyclic number.

It is not a de Polignac number, because 1308077521357 - 2³⁹ = 758321707469 is a prime.

It is a super-2 number, since 2×1308077521357² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1308077521357.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1308077521057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 654038760678 + 654038760679.

It is an arithmetic number, because the mean of its divisors is an integer number (654038760679).

Almost surely, 2^{1308077521357} is an apocalyptic number.

It is an amenable number.

1308077521357 is a deficient number, since it is larger than the sum of its proper divisors (1).

1308077521357 is an equidigital number, since it uses as much as digits as its factorization.

1308077521357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1234800, while the sum is 49.

The spelling of 1308077521357 in words is "one trillion, three hundred eight billion, seventy-seven million, five hundred twenty-one thousand, three hundred fifty-seven".