32005123420 has 24 divisors (see below), whose sum is σ = 70748168400. Its totient is φ = 12128257152.

The previous prime is 32005123411. The next prime is 32005123427. The reversal of 32005123420 is 2432150023.

It is a junction number, because it is equal to n+sod(n) for n = 32005123391 and 32005123400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32005123427) 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, 42111625 + ... + 42112384.

It is an arithmetic number, because the mean of its divisors is an integer number (2947840350).

Almost surely, 2^32005123420 is an apocalyptic number.

It is an amenable number.

32005123420 is an abundant number, since it is smaller than the sum of its proper divisors (38743044980).

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

32005123420 is a wasteful number, since it uses less digits than its factorization.

32005123420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84224037 (or 84224035 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

Adding to 32005123420 its reverse (2432150023), we get a palindrome (34437273443).

The spelling of 32005123420 in words is "thirty-two billion, five million, one hundred twenty-three thousand, four hundred twenty".