1013092821 has 24 divisors (see below), whose sum is σ = 1614366936. Its totient is φ = 608232960.

The previous prime is 1013092813. The next prime is 1013092837. The reversal of 1013092821 is 1282903101.

1013092821 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 16112196 + 996980625 = 4014^2 + 31575^2 .

It is not a de Polignac number, because 1013092821 - 2³ = 1013092813 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013092921) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 100800 + ... + 110393.

It is an arithmetic number, because the mean of its divisors is an integer number (67265289).

Almost surely, 2^1013092821 is an apocalyptic number.

It is an amenable number.

1013092821 is a deficient number, since it is larger than the sum of its proper divisors (601274115).

1013092821 is a wasteful number, since it uses less digits than its factorization.

1013092821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211253 (or 211250 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 1013092821 is about 31829.1190735779. The cubic root of 1013092821 is about 1004.3453641273.

Adding to 1013092821 its reverse (1282903101), we get a palindrome (2295995922).

The spelling of 1013092821 in words is "one billion, thirteen million, ninety-two thousand, eight hundred twenty-one".