1020001011 has 8 divisors (see below), whose sum is σ = 1363899600. Its totient is φ = 678051552.

The previous prime is 1020001001. The next prime is 1020001013. The reversal of 1020001011 is 1101000201.

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

It is not a de Polignac number, because 1020001011 - 2¹⁴ = 1019984627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1020001013) 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, 486060 + ... + 488153.

It is an arithmetic number, because the mean of its divisors is an integer number (170487450).

Almost surely, 2^1020001011 is an apocalyptic number.

1020001011 is a deficient number, since it is larger than the sum of its proper divisors (343898589).

1020001011 is an equidigital number, since it uses as much as digits as its factorization.

1020001011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974565.

The product of its (nonzero) digits is 2, while the sum is 6.

The square root of 1020001011 is about 31937.4546731577. The cubic root of 1020001011 is about 1006.6230421403.

Adding to 1020001011 its reverse (1101000201), we get a palindrome (2121001212).

The spelling of 1020001011 in words is "one billion, twenty million, one thousand, eleven".