1020200001 has 32 divisors (see below), whose sum is σ = 1433868288. Its totient is φ = 644448960.

The previous prime is 1020199979. The next prime is 1020200023. The reversal of 1020200001 is 1000020201.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1020199979) and next prime (1020200023).

It is not a de Polignac number, because 1020200001 - 2¹¹ = 1020197953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1020200081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1476066 + ... + 1476756.

It is an arithmetic number, because the mean of its divisors is an integer number (44808384).

Almost surely, 2^1020200001 is an apocalyptic number.

It is an amenable number.

1020200001 is a deficient number, since it is larger than the sum of its proper divisors (413668287).

1020200001 is a wasteful number, since it uses less digits than its factorization.

1020200001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061.

The product of its (nonzero) digits is 4, while the sum is 6.

The square root of 1020200001 is about 31940.5698289808. The cubic root of 1020200001 is about 1006.6884979233.

Adding to 1020200001 its reverse (1000020201), we get a palindrome (2020220202).

The spelling of 1020200001 in words is "one billion, twenty million, two hundred thousand, one".