21230041011 has 8 divisors (see below), whose sum is σ = 28513340304. Its totient is φ = 14050051200.

The previous prime is 21230040989. The next prime is 21230041013. The reversal of 21230041011 is 11014003212.

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

It is not a de Polignac number, because 21230041011 - 2²⁷ = 21095823283 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21230041013) 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, 25826890 + ... + 25827711.

It is an arithmetic number, because the mean of its divisors is an integer number (3564167538).

Almost surely, 2^21230041011 is an apocalyptic number.

21230041011 is a deficient number, since it is larger than the sum of its proper divisors (7283299293).

21230041011 is a wasteful number, since it uses less digits than its factorization.

21230041011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51654741.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 21230041011 its reverse (11014003212), we get a palindrome (32244044223).

The spelling of 21230041011 in words is "twenty-one billion, two hundred thirty million, forty-one thousand, eleven".