20412323420 has 12 divisors (see below), whose sum is σ = 42865879224. Its totient is φ = 8164929360.

The previous prime is 20412323417. The next prime is 20412323473. The reversal of 20412323420 is 2432321402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 510308066 + ... + 510308105.

It is an arithmetic number, because the mean of its divisors is an integer number (3572156602).

Almost surely, 2^20412323420 is an apocalyptic number.

20412323420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20412323420 is an abundant number, since it is smaller than the sum of its proper divisors (22453555804).

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

20412323420 is a wasteful number, since it uses less digits than its factorization.

20412323420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020616180 (or 1020616178 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 20412323420 its reverse (2432321402), we get a palindrome (22844644822).

The spelling of 20412323420 in words is "twenty billion, four hundred twelve million, three hundred twenty-three thousand, four hundred twenty".