1026443121 has 12 divisors (see below), whose sum is σ = 1504319376. Its totient is φ = 622086520.

The previous prime is 1026443113. The next prime is 1026443177. The reversal of 1026443121 is 1213446201.

It is not a de Polignac number, because 1026443121 - 2³ = 1026443113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1026443091 and 1026443100.

It is not an unprimeable number, because it can be changed into a prime (1026443191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1413471 + ... + 1414196.

It is an arithmetic number, because the mean of its divisors is an integer number (125359948).

Almost surely, 2^1026443121 is an apocalyptic number.

1026443121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1026443121 is a deficient number, since it is larger than the sum of its proper divisors (477876255).

1026443121 is a wasteful number, since it uses less digits than its factorization.

1026443121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2827692 (or 2827681 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 1026443121 is about 32038.1510234283. The cubic root of 1026443121 is about 1008.7378021063.

Adding to 1026443121 its reverse (1213446201), we get a palindrome (2239889322).

The spelling of 1026443121 in words is "one billion, twenty-six million, four hundred forty-three thousand, one hundred twenty-one".