20351232411024 has 80 divisors (see below), whose sum is σ = 52824762109952. Its totient is φ = 6751407210624.

The previous prime is 20351232411019. The next prime is 20351232411053. The reversal of 20351232411024 is 42011423215302.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20351232410982 and 20351232411000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37699077 + ... + 38235099.

Almost surely, 2^{20351232411024} is an apocalyptic number.

20351232411024 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20351232411024 is an abundant number, since it is smaller than the sum of its proper divisors (32473529698928).

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

20351232411024 is a wasteful number, since it uses less digits than its factorization.

20351232411024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539804 (or 539798 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 20351232411024 its reverse (42011423215302), we get a palindrome (62362655626326).

The spelling of 20351232411024 in words is "twenty trillion, three hundred fifty-one billion, two hundred thirty-two million, four hundred eleven thousand, twenty-four".