1020011012 has 12 divisors (see below), whose sum is σ = 1814282316. Its totient is φ = 501644640.

The previous prime is 1020010993. The next prime is 1020011017. The reversal of 1020011012 is 2101100201.

It can be written as a sum of positive squares in 2 ways, for example, as 551028676 + 468982336 = 23474^2 + 21656^2 .

It is not an unprimeable number, because it can be changed into a prime (1020011017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2089943 + ... + 2090430.

It is an arithmetic number, because the mean of its divisors is an integer number (151190193).

Almost surely, 2^1020011012 is an apocalyptic number.

It is an amenable number.

1020011012 is a deficient number, since it is larger than the sum of its proper divisors (794271304).

1020011012 is a wasteful number, since it uses less digits than its factorization.

1020011012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4180438 (or 4180436 counting only the distinct ones).

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

The square root of 1020011012 is about 31937.6112444247. The cubic root of 1020011012 is about 1006.6263320730.

Adding to 1020011012 its reverse (2101100201), we get a palindrome (3121111213).

It can be divided in two parts, 10200 and 11012, that added together give a palindrome (21212).

The spelling of 1020011012 in words is "one billion, twenty million, eleven thousand, twelve".