1021231010223 has 32 divisors (see below), whose sum is σ = 1525442426880. Its totient is φ = 675206992800.

The previous prime is 1021231010167. The next prime is 1021231010269. The reversal of 1021231010223 is 3220101321201.

It is not a de Polignac number, because 1021231010223 - 2⁶ = 1021231010159 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1021231010196 and 1021231010205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021231017223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2294890 + ... + 2703512.

It is an arithmetic number, because the mean of its divisors is an integer number (47670075840).

Almost surely, 2^{1021231010223} is an apocalyptic number.

1021231010223 is a deficient number, since it is larger than the sum of its proper divisors (504211416657).

1021231010223 is a wasteful number, since it uses less digits than its factorization.

1021231010223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409396 (or 409390 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1021231010223 its reverse (3220101321201), we get a palindrome (4241332331424).

The spelling of 1021231010223 in words is "one trillion, twenty-one billion, two hundred thirty-one million, ten thousand, two hundred twenty-three".