21011004141 has 8 divisors (see below), whose sum is σ = 28056301440. Its totient is φ = 13986521472.

The previous prime is 21011004139. The next prime is 21011004163. The reversal of 21011004141 is 14140011012.

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

It is not a de Polignac number, because 21011004141 - 2¹ = 21011004139 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21011004141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21011004341) 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, 5201301 + ... + 5205338.

It is an arithmetic number, because the mean of its divisors is an integer number (3507037680).

Almost surely, 2^21011004141 is an apocalyptic number.

It is an amenable number.

21011004141 is a deficient number, since it is larger than the sum of its proper divisors (7045297299).

21011004141 is a wasteful number, since it uses less digits than its factorization.

21011004141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10407315.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 21011004141 its reverse (14140011012), we get a palindrome (35151015153).

The spelling of 21011004141 in words is "twenty-one billion, eleven million, four thousand, one hundred forty-one".