1195887313553 has 2 divisors, whose sum is σ = 1195887313554. Its totient is φ = 1195887313552.

The previous prime is 1195887313513. The next prime is 1195887313573. The reversal of 1195887313553 is 3553137885911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1184838781009 + 11048532544 = 1088503^2 + 105112^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1195887313553 is a prime.

It is a super-2 number, since 2×1195887313553² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1195887313492 and 1195887313501.

It is not a weakly prime, because it can be changed into another prime (1195887313513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 597943656776 + 597943656777.

It is an arithmetic number, because the mean of its divisors is an integer number (597943656777).

Almost surely, 2^{1195887313553} is an apocalyptic number.

It is an amenable number.

1195887313553 is a deficient number, since it is larger than the sum of its proper divisors (1).

1195887313553 is an equidigital number, since it uses as much as digits as its factorization.

1195887313553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608000, while the sum is 59.

The spelling of 1195887313553 in words is "one trillion, one hundred ninety-five billion, eight hundred eighty-seven million, three hundred thirteen thousand, five hundred fifty-three".