1021321324023 has 96 divisors (see below), whose sum is σ = 1861973068032. Its totient is φ = 489496089600.

The previous prime is 1021321324013. The next prime is 1021321324117. The reversal of 1021321324023 is 3204231231201.

It is not a de Polignac number, because 1021321324023 - 2⁶ = 1021321323959 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1021321323984 and 1021321324002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021321324013) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 45415140 + ... + 45437622.

It is an arithmetic number, because the mean of its divisors is an integer number (19395552792).

Almost surely, 2^{1021321324023} is an apocalyptic number.

1021321324023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1021321324023 is a deficient number, since it is larger than the sum of its proper divisors (840651744009).

1021321324023 is a wasteful number, since it uses less digits than its factorization.

1021321324023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24685 (or 24678 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 1021321324023 its reverse (3204231231201), we get a palindrome (4225552555224).

The spelling of 1021321324023 in words is "one trillion, twenty-one billion, three hundred twenty-one million, three hundred twenty-four thousand, twenty-three".