1210989041 has 2 divisors, whose sum is σ = 1210989042. Its totient is φ = 1210989040.

The previous prime is 1210989037. The next prime is 1210989071. The reversal of 1210989041 is 1409890121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 745508416 + 465480625 = 27304^2 + 21575^2 .

It is a cyclic number.

It is not a de Polignac number, because 1210989041 - 2² = 1210989037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1210988992 and 1210989010.

It is not a weakly prime, because it can be changed into another prime (1210989071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605494520 + 605494521.

It is an arithmetic number, because the mean of its divisors is an integer number (605494521).

Almost surely, 2^1210989041 is an apocalyptic number.

It is an amenable number.

1210989041 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210989041 is an equidigital number, since it uses as much as digits as its factorization.

1210989041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 35.

The square root of 1210989041 is about 34799.2678227574. The cubic root of 1210989041 is about 1065.8924949696.

The spelling of 1210989041 in words is "one billion, two hundred ten million, nine hundred eighty-nine thousand, forty-one".