20453531333433 has 16 divisors (see below), whose sum is σ = 30039431725056. Its totient is φ = 12275729306640.

The previous prime is 20453531333369. The next prime is 20453531333479. The reversal of 20453531333433 is 33433313535402.

It is not a de Polignac number, because 20453531333433 - 2⁶ = 20453531333369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20453531333233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3008753785 + ... + 3008760582.

It is an arithmetic number, because the mean of its divisors is an integer number (1877464482816).

Almost surely, 2^{20453531333433} is an apocalyptic number.

It is an amenable number.

20453531333433 is a deficient number, since it is larger than the sum of its proper divisors (9585900391623).

20453531333433 is a wasteful number, since it uses less digits than its factorization.

20453531333433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6017514484.

The product of its (nonzero) digits is 1749600, while the sum is 42.

Adding to 20453531333433 its reverse (33433313535402), we get a palindrome (53886844868835).

The spelling of 20453531333433 in words is "twenty trillion, four hundred fifty-three billion, five hundred thirty-one million, three hundred thirty-three thousand, four hundred thirty-three".