21010324052 has 12 divisors (see below), whose sum is σ = 37761798900. Its totient is φ = 10221238656.

The previous prime is 21010324019. The next prime is 21010324061. The reversal of 21010324052 is 25042301012.

It can be written as a sum of positive squares in 2 ways, for example, as 20054524996 + 955799056 = 141614^2 + 30916^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70980677 + ... + 70980972.

It is an arithmetic number, because the mean of its divisors is an integer number (3146816575).

Almost surely, 2^21010324052 is an apocalyptic number.

It is an amenable number.

21010324052 is a deficient number, since it is larger than the sum of its proper divisors (16751474848).

21010324052 is a wasteful number, since it uses less digits than its factorization.

21010324052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141961690 (or 141961688 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 21010324052 its reverse (25042301012), we get a palindrome (46052625064).

The spelling of 21010324052 in words is "twenty-one billion, ten million, three hundred twenty-four thousand, fifty-two".