20411217384 has 32 divisors (see below), whose sum is σ = 51034691520. Its totient is φ = 6802852736.

The previous prime is 20411217373. The next prime is 20411217389. The reversal of 20411217384 is 48371211402.

It is not an unprimeable number, because it can be changed into a prime (20411217389) 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, 147877 + ... + 250379.

It is an arithmetic number, because the mean of its divisors is an integer number (1594834110).

Almost surely, 2^20411217384 is an apocalyptic number.

20411217384 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20411217384 is an abundant number, since it is smaller than the sum of its proper divisors (30623474136).

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

20411217384 is a wasteful number, since it uses less digits than its factorization.

20411217384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110809 (or 110805 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

Adding to 20411217384 its reverse (48371211402), we get a palindrome (68782428786).

The spelling of 20411217384 in words is "twenty billion, four hundred eleven million, two hundred seventeen thousand, three hundred eighty-four".