1023210020 has 24 divisors (see below), whose sum is σ = 2455704384. Its totient is φ = 350814816.

The previous prime is 1023209939. The next prime is 1023210031. The reversal of 1023210020 is 200123201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1023209983 and 1023210010.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3654182 + ... + 3654461.

It is an arithmetic number, because the mean of its divisors is an integer number (102321016).

Almost surely, 2^1023210020 is an apocalyptic number.

1023210020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1023210020 is an abundant number, since it is smaller than the sum of its proper divisors (1432494364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1023210020 is a wasteful number, since it uses less digits than its factorization.

1023210020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7308659 (or 7308657 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1023210020 is about 31987.6541809492. The cubic root of 1023210020 is about 1007.6775772882.

Adding to 1023210020 its reverse (200123201), we get a palindrome (1223333221).

The spelling of 1023210020 in words is "one billion, twenty-three million, two hundred ten thousand, twenty".