21431101341 has 8 divisors (see below), whose sum is σ = 30772863520. Its totient is φ = 13188370032.

The previous prime is 21431101339. The next prime is 21431101379. The reversal of 21431101341 is 14310113412.

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

It is not a de Polignac number, because 21431101341 - 2¹ = 21431101339 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 (21431101141) 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, 274757671 + ... + 274757748.

It is an arithmetic number, because the mean of its divisors is an integer number (3846607940).

Almost surely, 2^21431101341 is an apocalyptic number.

It is an amenable number.

21431101341 is a deficient number, since it is larger than the sum of its proper divisors (9341762179).

21431101341 is a wasteful number, since it uses less digits than its factorization.

21431101341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549515435.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 21431101341 its reverse (14310113412), we get a palindrome (35741214753).

The spelling of 21431101341 in words is "twenty-one billion, four hundred thirty-one million, one hundred one thousand, three hundred forty-one".