1021243355230 has 64 divisors (see below), whose sum is σ = 2218596645888. Its totient is φ = 330881886720.

The previous prime is 1021243355221. The next prime is 1021243355233. The reversal of 1021243355230 is 325533421201.

It is a junction number, because it is equal to n+sod(n) for n = 1021243355192 and 1021243355201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021243355233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3687531 + ... + 3954790.

It is an arithmetic number, because the mean of its divisors is an integer number (34665572592).

Almost surely, 2^{1021243355230} is an apocalyptic number.

1021243355230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021243355230 is an abundant number, since it is smaller than the sum of its proper divisors (1197353290658).

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

1021243355230 is a wasteful number, since it uses less digits than its factorization.

1021243355230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7642441.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 1021243355230 its reverse (325533421201), we get a palindrome (1346776776431).

The spelling of 1021243355230 in words is "one trillion, twenty-one billion, two hundred forty-three million, three hundred fifty-five thousand, two hundred thirty".