1030213661 has 4 divisors (see below), whose sum is σ = 1065738300. Its totient is φ = 994689024.

The previous prime is 1030213589. The next prime is 1030213663. The reversal of 1030213661 is 1663120301.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 294122500 + 736091161 = 17150^2 + 27131^2 .

It is a cyclic number.

It is not a de Polignac number, because 1030213661 - 2¹⁰ = 1030212637 is a prime.

It is a super-2 number, since 2×1030213661² = 2122680374622045842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030213663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17762276 + ... + 17762333.

It is an arithmetic number, because the mean of its divisors is an integer number (266434575).

Almost surely, 2^1030213661 is an apocalyptic number.

It is an amenable number.

1030213661 is a deficient number, since it is larger than the sum of its proper divisors (35524639).

1030213661 is an equidigital number, since it uses as much as digits as its factorization.

1030213661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35524638.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 1030213661 is about 32096.9416144280. The cubic root of 1030213661 is about 1009.9714598346.

Adding to 1030213661 its reverse (1663120301), we get a palindrome (2693333962).

The spelling of 1030213661 in words is "one billion, thirty million, two hundred thirteen thousand, six hundred sixty-one".