32001030021 has 16 divisors (see below), whose sum is σ = 44105105408. Its totient is φ = 20617383600.

The previous prime is 32001029987. The next prime is 32001030023. The reversal of 32001030021 is 12003010023.

It is a happy number.

It is not a de Polignac number, because 32001030021 - 2¹⁷ = 32000898949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 32001029979 and 32001030006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32001030023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169045 + ... + 304266.

It is an arithmetic number, because the mean of its divisors is an integer number (2756569088).

Almost surely, 2^32001030021 is an apocalyptic number.

32001030021 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

32001030021 is a deficient number, since it is larger than the sum of its proper divisors (12104075387).

32001030021 is a wasteful number, since it uses less digits than its factorization.

32001030021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474072.

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 32001030021 its reverse (12003010023), we get a palindrome (44004040044).

The spelling of 32001030021 in words is "thirty-two billion, one million, thirty thousand, twenty-one".