20334123420 has 96 divisors (see below), whose sum is σ = 61452820800. Its totient is φ = 4994088960.

The previous prime is 20334123409. The next prime is 20334123431. The reversal of 20334123420 is 2432143302.

It is an interprime number because it is at equal distance from previous prime (20334123409) and next prime (20334123431).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 321190 + ... + 379250.

It is an arithmetic number, because the mean of its divisors is an integer number (640133550).

Almost surely, 2^20334123420 is an apocalyptic number.

20334123420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20334123420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30726410400).

20334123420 is an abundant number, since it is smaller than the sum of its proper divisors (41118697380).

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

20334123420 is a wasteful number, since it uses less digits than its factorization.

20334123420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58535 (or 58533 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 20334123420 its reverse (2432143302), we get a palindrome (22766266722).

The spelling of 20334123420 in words is "twenty billion, three hundred thirty-four million, one hundred twenty-three thousand, four hundred twenty".