21050025323032 has 8 divisors (see below), whose sum is σ = 39468797480700. Its totient is φ = 10525012661512.

The previous prime is 21050025322981. The next prime is 21050025323081. The reversal of 21050025323032 is 23032352005012.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×21050025323032² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1315626582682 + ... + 1315626582697.

Almost surely, 2^{21050025323032} is an apocalyptic number.

It is an amenable number.

21050025323032 is a deficient number, since it is larger than the sum of its proper divisors (18418772157668).

21050025323032 is a wasteful number, since it uses less digits than its factorization.

21050025323032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2631253165385 (or 2631253165381 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 28.

Adding to 21050025323032 its reverse (23032352005012), we get a palindrome (44082377328044).

The spelling of 21050025323032 in words is "twenty-one trillion, fifty billion, twenty-five million, three hundred twenty-three thousand, thirty-two".