1021326126 has 16 divisors (see below), whose sum is σ = 2058737664. Its totient is φ = 337761144.

The previous prime is 1021326079. The next prime is 1021326139. The reversal of 1021326126 is 6216231201.

1021326126 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1021326096 and 1021326105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 669400 + ... + 670923.

It is an arithmetic number, because the mean of its divisors is an integer number (128671104).

Almost surely, 2^1021326126 is an apocalyptic number.

1021326126 is an abundant number, since it is smaller than the sum of its proper divisors (1037411538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1021326126 is a wasteful number, since it uses less digits than its factorization.

1021326126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340455.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 1021326126 is about 31958.1934095155. The cubic root of 1021326126 is about 1007.0587652626.

Adding to 1021326126 its reverse (6216231201), we get a palindrome (7237557327).

The spelling of 1021326126 in words is "one billion, twenty-one million, three hundred twenty-six thousand, one hundred twenty-six".