235043010656981 has 2 divisors, whose sum is σ = 235043010656982. Its totient is φ = 235043010656980.

The previous prime is 235043010656963. The next prime is 235043010657011. The reversal of 235043010656981 is 189656010340532.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 216714936580081 + 18328074076900 = 14721241^2 + 4281130^2 .

It is a cyclic number.

It is not a de Polignac number, because 235043010656981 - 2¹⁴ = 235043010640597 is a prime.

It is a super-2 number, since 2×235043010656981² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (235043010656911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117521505328490 + 117521505328491.

It is an arithmetic number, because the mean of its divisors is an integer number (117521505328491).

Almost surely, 2^{235043010656981} is an apocalyptic number.

It is an amenable number.

235043010656981 is a deficient number, since it is larger than the sum of its proper divisors (1).

235043010656981 is an equidigital number, since it uses as much as digits as its factorization.

235043010656981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4665600, while the sum is 53.

The spelling of 235043010656981 in words is "two hundred thirty-five trillion, forty-three billion, ten million, six hundred fifty-six thousand, nine hundred eighty-one".