21401312141 has 8 divisors (see below), whose sum is σ = 23565082464. Its totient is φ = 19273907920.

The previous prime is 21401312129. The next prime is 21401312147. The reversal of 21401312141 is 14121310412.

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

It is a cyclic number.

It is not a de Polignac number, because 21401312141 - 2¹⁰ = 21401311117 is a prime.

It is a super-2 number, since 2×21401312141² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21401312147) 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, 9090290 + ... + 9092643.

It is an arithmetic number, because the mean of its divisors is an integer number (2945635308).

Almost surely, 2^21401312141 is an apocalyptic number.

It is an amenable number.

21401312141 is a deficient number, since it is larger than the sum of its proper divisors (2163770323).

21401312141 is a wasteful number, since it uses less digits than its factorization.

21401312141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18183051.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 21401312141 its reverse (14121310412), we get a palindrome (35522622553).

The spelling of 21401312141 in words is "twenty-one billion, four hundred one million, three hundred twelve thousand, one hundred forty-one".