1020208361 has 16 divisors (see below), whose sum is σ = 1054084416. Its totient is φ = 987054336.

The previous prime is 1020208351. The next prime is 1020208379. The reversal of 1020208361 is 1638020201.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1020208361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020208331) 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 15 ways as a sum of consecutive naturals, for example, 987101 + ... + 988133.

It is an arithmetic number, because the mean of its divisors is an integer number (65880276).

Almost surely, 2^1020208361 is an apocalyptic number.

It is an amenable number.

1020208361 is a deficient number, since it is larger than the sum of its proper divisors (33876055).

1020208361 is a wasteful number, since it uses less digits than its factorization.

1020208361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1352.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 1020208361 is about 31940.7006967599. The cubic root of 1020208361 is about 1006.6912476759.

Adding to 1020208361 its reverse (1638020201), we get a palindrome (2658228562).

The spelling of 1020208361 in words is "one billion, twenty million, two hundred eight thousand, three hundred sixty-one".