32421000000 has 392 divisors, whose sum is σ = 109297975968. Its totient is φ = 8480000000.

The previous prime is 32420999981. The next prime is 32421000043. The reversal of 32421000000 is 12423.

It is a super-2 number, since 2×32421000000² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 32421000000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 302999947 + ... + 303000053.

Almost surely, 2^32421000000 is an apocalyptic number.

32421000000 is a gapful number since it is divisible by the number (30) 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 32421000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54648987984).

32421000000 is an abundant number, since it is smaller than the sum of its proper divisors (76876975968).

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

32421000000 is an equidigital number, since it uses as much as digits as its factorization.

32421000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253 (or 218 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 32421000000 its reverse (12423), we get a palindrome (32421012423).

The spelling of 32421000000 in words is "thirty-two billion, four hundred twenty-one million", and thus it is an aban number.