1020366217 has 8 divisors (see below), whose sum is σ = 1099642824. Its totient is φ = 941202048.

The previous prime is 1020366211. The next prime is 1020366289. The reversal of 1020366217 is 7126630201.

1020366217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 399160441 + 621205776 = 19979^2 + 24924^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1020366217 - 2¹⁵ = 1020333449 is a prime.

It is a super-2 number, since 2×1020366217² = 2082294433589782178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020366211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8758 + ... + 46015.

It is an arithmetic number, because the mean of its divisors is an integer number (137455353).

Almost surely, 2^1020366217 is an apocalyptic number.

It is an amenable number.

1020366217 is a deficient number, since it is larger than the sum of its proper divisors (79276607).

1020366217 is a wasteful number, since it uses less digits than its factorization.

1020366217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56219.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 1020366217 is about 31943.1716803451. The cubic root of 1020366217 is about 1006.7431665010.

Adding to 1020366217 its reverse (7126630201), we get a palindrome (8146996418).

The spelling of 1020366217 in words is "one billion, twenty million, three hundred sixty-six thousand, two hundred seventeen".