20323332541397 has 16 divisors (see below), whose sum is σ = 21131491920000. Its totient is φ = 19522346082624.

The previous prime is 20323332541373. The next prime is 20323332541409. The reversal of 20323332541397 is 79314523332302.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20323332541397 is a prime.

It is a super-3 number, since 3×20323332541397³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20323332541307) 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 15 ways as a sum of consecutive naturals, for example, 74766143 + ... + 75037475.

It is an arithmetic number, because the mean of its divisors is an integer number (1320718245000).

Almost surely, 2^{20323332541397} is an apocalyptic number.

It is an amenable number.

20323332541397 is a deficient number, since it is larger than the sum of its proper divisors (808159378603).

20323332541397 is a wasteful number, since it uses less digits than its factorization.

20323332541397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284540.

The product of its (nonzero) digits is 2449440, while the sum is 47.

Adding to 20323332541397 its reverse (79314523332302), we get a palindrome (99637855873699).

The spelling of 20323332541397 in words is "twenty trillion, three hundred twenty-three billion, three hundred thirty-two million, five hundred forty-one thousand, three hundred ninety-seven".