21341051141 has 4 divisors (see below), whose sum is σ = 21342263712. Its totient is φ = 21339838572.

The previous prime is 21341051131. The next prime is 21341051153. The reversal of 21341051141 is 14115014312.

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 21341051141 - 2²² = 21336856837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21341051131) 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, 579491 + ... + 615216.

It is an arithmetic number, because the mean of its divisors is an integer number (5335565928).

Almost surely, 2^21341051141 is an apocalyptic number.

It is an amenable number.

21341051141 is a deficient number, since it is larger than the sum of its proper divisors (1212571).

21341051141 is a wasteful number, since it uses less digits than its factorization.

21341051141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212570.

The product of its (nonzero) digits is 480, while the sum is 23.

Adding to 21341051141 its reverse (14115014312), we get a palindrome (35456065453).

The spelling of 21341051141 in words is "twenty-one billion, three hundred forty-one million, fifty-one thousand, one hundred forty-one".