1021300223 has 4 divisors (see below), whose sum is σ = 1026592128. Its totient is φ = 1016008320.

The previous prime is 1021300199. The next prime is 1021300249. The reversal of 1021300223 is 3220031201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3220031201 = 38713 ⋅83177.

It is a cyclic number.

It is not a de Polignac number, because 1021300223 - 2⁸ = 1021299967 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1021300198 and 1021300207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021300123) 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, 2645663 + ... + 2646048.

It is an arithmetic number, because the mean of its divisors is an integer number (256648032).

Almost surely, 2^1021300223 is an apocalyptic number.

1021300223 is a deficient number, since it is larger than the sum of its proper divisors (5291905).

1021300223 is an equidigital number, since it uses as much as digits as its factorization.

1021300223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5291904.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1021300223 is about 31957.7881431115. The cubic root of 1021300223 is about 1007.0502514741.

Adding to 1021300223 its reverse (3220031201), we get a palindrome (4241331424).

The spelling of 1021300223 in words is "one billion, twenty-one million, three hundred thousand, two hundred twenty-three".