1053210321 has 12 divisors (see below), whose sum is σ = 1522277172. Its totient is φ = 701690976.

The previous prime is 1053210289. The next prime is 1053210331. The reversal of 1053210321 is 1230123501.

1053210321 is a `hidden beast` number, since 10 + 532 + 103 + 21 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 186732225 + 866478096 = 13665^2 + 29436^2 .

It is not a de Polignac number, because 1053210321 - 2⁵ = 1053210289 is a prime.

It is a super-2 number, since 2×1053210321² = 2218503960521846082, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1053210294 and 1053210303.

It is not an unprimeable number, because it can be changed into a prime (1053210331) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22266 + ... + 51011.

It is an arithmetic number, because the mean of its divisors is an integer number (126856431).

Almost surely, 2^1053210321 is an apocalyptic number.

It is an amenable number.

1053210321 is a deficient number, since it is larger than the sum of its proper divisors (469066851).

1053210321 is a wasteful number, since it uses less digits than its factorization.

1053210321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74880 (or 74877 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 1053210321 is about 32453.2020145933. The cubic root of 1053210321 is about 1017.4311627714.

Adding to 1053210321 its reverse (1230123501), we get a palindrome (2283333822).

The spelling of 1053210321 in words is "one billion, fifty-three million, two hundred ten thousand, three hundred twenty-one".