32121043020 has 96 divisors (see below), whose sum is σ = 109016893440. Its totient is φ = 7786918080.

The previous prime is 32121043013. The next prime is 32121043027. The reversal of 32121043020 is 2034012123.

32121043020 is a `hidden beast` number, since 3 + 2 + 1 + 210 + 430 + 20 = 666.

It is an interprime number because it is at equal distance from previous prime (32121043013) and next prime (32121043027).

It is a super-2 number, since 2×32121043020² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 32121042984 and 32121043002.

It is not an unprimeable number, because it can be changed into a prime (32121043027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2697852 + ... + 2709731.

It is an arithmetic number, because the mean of its divisors is an integer number (1135592640).

Almost surely, 2^32121043020 is an apocalyptic number.

32121043020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

32121043020 is an abundant number, since it is smaller than the sum of its proper divisors (76895850420).

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

32121043020 is a wasteful number, since it uses less digits than its factorization.

32121043020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5407612 (or 5407604 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 32121043020 its reverse (2034012123), we get a palindrome (34155055143).

The spelling of 32121043020 in words is "thirty-two billion, one hundred twenty-one million, forty-three thousand, twenty".