1021323102231 has 32 divisors (see below), whose sum is σ = 1453652353728. Its totient is φ = 635610286080.

The previous prime is 1021323102227. The next prime is 1021323102307. The reversal of 1021323102231 is 1322013231201.

It is not a de Polignac number, because 1021323102231 - 2² = 1021323102227 is a prime.

It is a super-2 number, since 2×1021323102231² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1021323102198 and 1021323102207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021323102931) 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, 3577005 + ... + 3851961.

It is an arithmetic number, because the mean of its divisors is an integer number (45426636054).

Almost surely, 2^{1021323102231} is an apocalyptic number.

1021323102231 is a deficient number, since it is larger than the sum of its proper divisors (432329251497).

1021323102231 is a wasteful number, since it uses less digits than its factorization.

1021323102231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275571.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1021323102231 its reverse (1322013231201), we get a palindrome (2343336333432).

The spelling of 1021323102231 in words is "one trillion, twenty-one billion, three hundred twenty-three million, one hundred two thousand, two hundred thirty-one".