21033550051302 has 16 divisors (see below), whose sum is σ = 42080399887680. Its totient is φ = 7008966719592.

The previous prime is 21033550051271. The next prime is 21033550051313. The reversal of 21033550051302 is 20315005533012.

It is a self number, because there is not a number n which added to its sum of digits gives 21033550051302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 554137152 + ... + 554175107.

It is an arithmetic number, because the mean of its divisors is an integer number (2630024992980).

Almost surely, 2^{21033550051302} is an apocalyptic number.

21033550051302 is an abundant number, since it is smaller than the sum of its proper divisors (21046849836378).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21033550051302 is a wasteful number, since it uses less digits than its factorization.

21033550051302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1108315427.

The product of its (nonzero) digits is 13500, while the sum is 30.

Adding to 21033550051302 its reverse (20315005533012), we get a palindrome (41348555584314).

The spelling of 21033550051302 in words is "twenty-one trillion, thirty-three billion, five hundred fifty million, fifty-one thousand, three hundred two".