1152233968981 has 2 divisors, whose sum is σ = 1152233968982. Its totient is φ = 1152233968980.

The previous prime is 1152233968939. The next prime is 1152233968993. The reversal of 1152233968981 is 1898693322511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 787851512100 + 364382456881 = 887610^2 + 603641^2 .

It is an emirp because it is prime and its reverse (1898693322511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1152233968981 - 2²⁵ = 1152200414549 is a prime.

It is a super-2 number, since 2×1152233968981² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1152233962981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 576116984490 + 576116984491.

It is an arithmetic number, because the mean of its divisors is an integer number (576116984491).

Almost surely, 2^{1152233968981} is an apocalyptic number.

It is an amenable number.

1152233968981 is a deficient number, since it is larger than the sum of its proper divisors (1).

1152233968981 is an equidigital number, since it uses as much as digits as its factorization.

1152233968981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5598720, while the sum is 58.

The spelling of 1152233968981 in words is "one trillion, one hundred fifty-two billion, two hundred thirty-three million, nine hundred sixty-eight thousand, nine hundred eighty-one".