1174351289981 has 2 divisors, whose sum is σ = 1174351289982. Its totient is φ = 1174351289980.

The previous prime is 1174351289963. The next prime is 1174351290061. The reversal of 1174351289981 is 1899821534711.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1174340668900 + 10621081 = 1083670^2 + 3259^2 .

It is an emirp because it is prime and its reverse (1899821534711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1174351289981 - 2¹⁴ = 1174351273597 is a prime.

It is a super-2 number, since 2×1174351289981² (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 1174351289981.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1174351289941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 587175644990 + 587175644991.

It is an arithmetic number, because the mean of its divisors is an integer number (587175644991).

Almost surely, 2^{1174351289981} is an apocalyptic number.

It is an amenable number.

1174351289981 is a deficient number, since it is larger than the sum of its proper divisors (1).

1174351289981 is an equidigital number, since it uses as much as digits as its factorization.

1174351289981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4354560, while the sum is 59.

The spelling of 1174351289981 in words is "one trillion, one hundred seventy-four billion, three hundred fifty-one million, two hundred eighty-nine thousand, nine hundred eighty-one".