20021410340323 has 96 divisors (see below), whose sum is σ = 25602459657984. Its totient is φ = 15547112275968.

The previous prime is 20021410340317. The next prime is 20021410340333. The reversal of 20021410340323 is 32304301412002.

It is not a de Polignac number, because 20021410340323 - 2²¹ = 20021408243171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20021410340333) 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, 739684636 + ... + 739711702.

It is an arithmetic number, because the mean of its divisors is an integer number (266692288104).

Almost surely, 2^{20021410340323} is an apocalyptic number.

20021410340323 is a deficient number, since it is larger than the sum of its proper divisors (5581049317661).

20021410340323 is a wasteful number, since it uses less digits than its factorization.

20021410340323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27441 (or 27434 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 20021410340323 its reverse (32304301412002), we get a palindrome (52325711752325).

The spelling of 20021410340323 in words is "twenty trillion, twenty-one billion, four hundred ten million, three hundred forty thousand, three hundred twenty-three".