20531003323350 has 48 divisors (see below), whose sum is σ = 54833571958032. Its totient is φ = 5053785432960.

The previous prime is 20531003323333. The next prime is 20531003323351. The reversal of 20531003323350 is 5332330013502.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20531003323351) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5264357877 + ... + 5264361776.

It is an arithmetic number, because the mean of its divisors is an integer number (1142366082459).

Almost surely, 2^{20531003323350} is an apocalyptic number.

20531003323350 is an abundant number, since it is smaller than the sum of its proper divisors (34302568634682).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20531003323350 is a wasteful number, since it uses less digits than its factorization.

20531003323350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10528719681 (or 10528719676 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 30.

Adding to 20531003323350 its reverse (5332330013502), we get a palindrome (25863333336852).

The spelling of 20531003323350 in words is "twenty trillion, five hundred thirty-one billion, three million, three hundred twenty-three thousand, three hundred fifty".