1023410221 has 4 divisors (see below), whose sum is σ = 1023484444. Its totient is φ = 1023336000.

The previous prime is 1023410207. The next prime is 1023410233. The reversal of 1023410221 is 1220143201.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1220143201 = 18329 ⋅66569.

It can be written as a sum of positive squares in 2 ways, for example, as 505620196 + 517790025 = 22486^2 + 22755^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1023410221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1023410195 and 1023410204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023710221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9660 + ... + 46261.

It is an arithmetic number, because the mean of its divisors is an integer number (255871111).

Almost surely, 2^1023410221 is an apocalyptic number.

It is an amenable number.

1023410221 is a deficient number, since it is larger than the sum of its proper divisors (74223).

1023410221 is an equidigital number, since it uses as much as digits as its factorization.

1023410221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74222.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1023410221 is about 31990.7833758412. The cubic root of 1023410221 is about 1007.7432936445.

Adding to 1023410221 its reverse (1220143201), we get a palindrome (2243553422).

The spelling of 1023410221 in words is "one billion, twenty-three million, four hundred ten thousand, two hundred twenty-one".