20633256323 has 8 divisors (see below), whose sum is σ = 21533741088. Its totient is φ = 19733053824.

The previous prime is 20633256307. The next prime is 20633256361. The reversal of 20633256323 is 32365233602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20633256323 - 2⁴ = 20633256307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20633256383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86261 + ... + 220697.

It is an arithmetic number, because the mean of its divisors is an integer number (2691717636).

Almost surely, 2^20633256323 is an apocalyptic number.

20633256323 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

20633256323 is a deficient number, since it is larger than the sum of its proper divisors (900484765).

20633256323 is a wasteful number, since it uses less digits than its factorization.

20633256323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141133.

The product of its (nonzero) digits is 116640, while the sum is 35.

Adding to 20633256323 its reverse (32365233602), we get a palindrome (52998489925).

The spelling of 20633256323 in words is "twenty billion, six hundred thirty-three million, two hundred fifty-six thousand, three hundred twenty-three".