21203044030211 has 8 divisors (see below), whose sum is σ = 21731122677264. Its totient is φ = 20675485918080.

The previous prime is 21203044030199. The next prime is 21203044030279. The reversal of 21203044030211 is 11203044030212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21203044030211 is a prime.

It is a super-2 number, since 2×21203044030211² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21203044030291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130051250 + ... + 130214183.

It is an arithmetic number, because the mean of its divisors is an integer number (2716390334658).

Almost surely, 2^{21203044030211} is an apocalyptic number.

21203044030211 is a deficient number, since it is larger than the sum of its proper divisors (528078647053).

21203044030211 is a wasteful number, since it uses less digits than its factorization.

21203044030211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260267461.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 21203044030211 its reverse (11203044030212), we get a palindrome (32406088060423).

Subtracting from 21203044030211 its reverse (11203044030212), we obtain a palindrome (9999999999999).

The spelling of 21203044030211 in words is "twenty-one trillion, two hundred three billion, forty-four million, thirty thousand, two hundred eleven".