21035344001 has 4 divisors (see below), whose sum is σ = 24040393152. Its totient is φ = 18030294852.

The previous prime is 21035343991. The next prime is 21035344027. The reversal of 21035344001 is 10044353012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 21035344001 - 2¹⁴ = 21035327617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21035344091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1502524565 + ... + 1502524578.

It is an arithmetic number, because the mean of its divisors is an integer number (6010098288).

Almost surely, 2^21035344001 is an apocalyptic number.

It is an amenable number.

21035344001 is a deficient number, since it is larger than the sum of its proper divisors (3005049151).

21035344001 is an equidigital number, since it uses as much as digits as its factorization.

21035344001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3005049150.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 21035344001 its reverse (10044353012), we get a palindrome (31079697013).

The spelling of 21035344001 in words is "twenty-one billion, thirty-five million, three hundred forty-four thousand, one".