20343101420 has 12 divisors (see below), whose sum is σ = 42720513024. Its totient is φ = 8137240560.

The previous prime is 20343101419. The next prime is 20343101423. The reversal of 20343101420 is 2410134302.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 1017155071 = 20343101420 / (2 + 0 + 3 + 4 + 3 + 1 + 0 + 1 + 4 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 20343101392 and 20343101401.

It is not an unprimeable number, because it can be changed into a prime (20343101423) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 508577516 + ... + 508577555.

It is an arithmetic number, because the mean of its divisors is an integer number (3560042752).

Almost surely, 2^20343101420 is an apocalyptic number.

20343101420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20343101420 is an abundant number, since it is smaller than the sum of its proper divisors (22377411604).

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

20343101420 is a wasteful number, since it uses less digits than its factorization.

20343101420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017155080 (or 1017155078 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 20343101420 its reverse (2410134302), we get a palindrome (22753235722).

The spelling of 20343101420 in words is "twenty billion, three hundred forty-three million, one hundred one thousand, four hundred twenty".