20023315452788 has 6 divisors (see below), whose sum is σ = 35040802042386. Its totient is φ = 10011657726392.

The previous prime is 20023315452787. The next prime is 20023315452797. The reversal of 20023315452788 is 88725451332002.

It can be written as a sum of positive squares in only one way, i.e., 13363499094544 + 6659816358244 = 3655612^2 + 2580662^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20023315452787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2502914431595 + ... + 2502914431602.

It is an arithmetic number, because the mean of its divisors is an integer number (5840133673731).

Almost surely, 2^{20023315452788} is an apocalyptic number.

It is an amenable number.

20023315452788 is a deficient number, since it is larger than the sum of its proper divisors (15017486589598).

20023315452788 is a wasteful number, since it uses less digits than its factorization.

20023315452788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5005828863201 (or 5005828863199 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 50.

The spelling of 20023315452788 in words is "twenty trillion, twenty-three billion, three hundred fifteen million, four hundred fifty-two thousand, seven hundred eighty-eight".