1020201011 has 4 divisors (see below), whose sum is σ = 1022695800. Its totient is φ = 1017706224.

The previous prime is 1020200999. The next prime is 1020201019. The reversal of 1020201011 is 1101020201.

1020201011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1101020201 = 16693 ⋅65957.

It is a cyclic number.

It is not a de Polignac number, because 1020201011 - 2²² = 1016006707 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1020201011.

It is not an unprimeable number, because it can be changed into a prime (1020201019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1246781 + ... + 1247598.

It is an arithmetic number, because the mean of its divisors is an integer number (255673950).

Almost surely, 2^1020201011 is an apocalyptic number.

1020201011 is a deficient number, since it is larger than the sum of its proper divisors (2494789).

1020201011 is an equidigital number, since it uses as much as digits as its factorization.

1020201011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2494788.

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 1020201011 is about 31940.5856395903. The cubic root of 1020201011 is about 1006.6888301311.

Adding to 1020201011 its reverse (1101020201), we get a palindrome (2121221212).

The spelling of 1020201011 in words is "one billion, twenty million, two hundred one thousand, eleven".