1117703396681 has 2 divisors, whose sum is σ = 1117703396682. Its totient is φ = 1117703396680.

The previous prime is 1117703396657. The next prime is 1117703396687. The reversal of 1117703396681 is 1866933077111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 865783725625 + 251919671056 = 930475^2 + 501916^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1117703396681 is a prime.

It is a super-2 number, since 2×1117703396681² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1117703396687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 558851698340 + 558851698341.

It is an arithmetic number, because the mean of its divisors is an integer number (558851698341).

Almost surely, 2^{1117703396681} is an apocalyptic number.

It is an amenable number.

1117703396681 is a deficient number, since it is larger than the sum of its proper divisors (1).

1117703396681 is an equidigital number, since it uses as much as digits as its factorization.

1117703396681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1143072, while the sum is 53.

The spelling of 1117703396681 in words is "one trillion, one hundred seventeen billion, seven hundred three million, three hundred ninety-six thousand, six hundred eighty-one".