21443024000355 has 32 divisors (see below), whose sum is σ = 36128996451840. Its totient is φ = 10830041107200.

The previous prime is 21443024000267. The next prime is 21443024000381. The reversal of 21443024000355 is 55300042034412.

It is not a de Polignac number, because 21443024000355 - 2²² = 21443019806051 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14316346 + ... + 15743055.

It is an arithmetic number, because the mean of its divisors is an integer number (1129031139120).

Almost surely, 2^{21443024000355} is an apocalyptic number.

21443024000355 is a deficient number, since it is larger than the sum of its proper divisors (14685972451485).

21443024000355 is a wasteful number, since it uses less digits than its factorization.

21443024000355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30061931.

The product of its (nonzero) digits is 57600, while the sum is 33.

Adding to 21443024000355 its reverse (55300042034412), we get a palindrome (76743066034767).

The spelling of 21443024000355 in words is "twenty-one trillion, four hundred forty-three billion, twenty-four million, three hundred fifty-five", and thus it is an aban number.