1030211081 has 2 divisors, whose sum is σ = 1030211082. Its totient is φ = 1030211080.

The previous prime is 1030211069. The next prime is 1030211123. The reversal of 1030211081 is 1801120301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 911073856 + 119137225 = 30184^2 + 10915^2 .

It is a cyclic number.

It is not a de Polignac number, because 1030211081 - 2¹⁰ = 1030210057 is a prime.

It is a super-3 number, since 3×1030211081³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (1030291081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515105540 + 515105541.

It is an arithmetic number, because the mean of its divisors is an integer number (515105541).

Almost surely, 2^1030211081 is an apocalyptic number.

It is an amenable number.

1030211081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1030211081 is an equidigital number, since it uses as much as digits as its factorization.

1030211081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 17.

The square root of 1030211081 is about 32096.9014236577. The cubic root of 1030211081 is about 1009.9706167317.

Adding to 1030211081 its reverse (1801120301), we get a palindrome (2831331382).

The spelling of 1030211081 in words is "one billion, thirty million, two hundred eleven thousand, eighty-one".