32121048128 has 28 divisors (see below), whose sum is σ = 68643299340. Its totient is φ = 14825098752.

The previous prime is 32121048109. The next prime is 32121048137. The reversal of 32121048128 is 82184012123.

It can be written as a sum of positive squares in 2 ways, for example, as 14162904064 + 17958144064 = 119008^2 + 134008^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 32121048094 and 32121048103.

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, 19302683 + ... + 19304346.

It is an arithmetic number, because the mean of its divisors is an integer number (2451546405).

Almost surely, 2^32121048128 is an apocalyptic number.

It is an amenable number.

32121048128 is an abundant number, since it is smaller than the sum of its proper divisors (36522251212).

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

32121048128 is a wasteful number, since it uses less digits than its factorization.

32121048128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38607054 (or 38607044 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 32.

The spelling of 32121048128 in words is "thirty-two billion, one hundred twenty-one million, forty-eight thousand, one hundred twenty-eight".