21032310332 has 24 divisors (see below), whose sum is σ = 40910193072. Its totient is φ = 9379760000.

The previous prime is 21032310331. The next prime is 21032310373. The reversal of 21032310332 is 23301323012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21032310331) 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, 4507169 + ... + 4511832.

It is an arithmetic number, because the mean of its divisors is an integer number (1704591378).

Almost surely, 2^21032310332 is an apocalyptic number.

21032310332 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21032310332 is a deficient number, since it is larger than the sum of its proper divisors (19877882740).

21032310332 is a wasteful number, since it uses less digits than its factorization.

21032310332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9019069 (or 9019067 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 21032310332 its reverse (23301323012), we get a palindrome (44333633344).

The spelling of 21032310332 in words is "twenty-one billion, thirty-two million, three hundred ten thousand, three hundred thirty-two".