21032310001021 has 8 divisors (see below), whose sum is σ = 22944501885600. Its totient is φ = 19120145400240.

The previous prime is 21032310000931. The next prime is 21032310001033. The reversal of 21032310001021 is 12010001323012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21032310001021 - 2⁷ = 21032310000893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21032310000986 and 21032310001004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21032310031021) 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, 5192211 + ... + 8308048.

It is an arithmetic number, because the mean of its divisors is an integer number (2868062735700).

Almost surely, 2^{21032310001021} is an apocalyptic number.

It is an amenable number.

21032310001021 is a deficient number, since it is larger than the sum of its proper divisors (1912191884579).

21032310001021 is a wasteful number, since it uses less digits than its factorization.

21032310001021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13641899.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 21032310001021 its reverse (12010001323012), we get a palindrome (33042311324033).

The spelling of 21032310001021 in words is "twenty-one trillion, thirty-two billion, three hundred ten million, one thousand, twenty-one".