21334121141 has 4 divisors (see below), whose sum is σ = 21382279872. Its totient is φ = 21285962412.

The previous prime is 21334121113. The next prime is 21334121143. The reversal of 21334121141 is 14112143312.

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 21334121141 - 2²² = 21329926837 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21334121143) 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, 24078701 + ... + 24079586.

It is an arithmetic number, because the mean of its divisors is an integer number (5345569968).

Almost surely, 2^21334121141 is an apocalyptic number.

It is an amenable number.

21334121141 is a deficient number, since it is larger than the sum of its proper divisors (48158731).

21334121141 is an equidigital number, since it uses as much as digits as its factorization.

21334121141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48158730.

The product of its digits is 576, while the sum is 23.

Adding to 21334121141 its reverse (14112143312), we get a palindrome (35446264453).

The spelling of 21334121141 in words is "twenty-one billion, three hundred thirty-four million, one hundred twenty-one thousand, one hundred forty-one".