21143140001 has 8 divisors (see below), whose sum is σ = 21243258624. Its totient is φ = 21043069200.

The previous prime is 21143139977. The next prime is 21143140049. The reversal of 21143140001 is 10004134112.

It is a happy number.

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 21143140001 - 2¹⁰ = 21143138977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21143140201) 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, 1128230 + ... + 1146816.

It is an arithmetic number, because the mean of its divisors is an integer number (2655407328).

Almost surely, 2^21143140001 is an apocalyptic number.

It is an amenable number.

21143140001 is a deficient number, since it is larger than the sum of its proper divisors (100118623).

21143140001 is a wasteful number, since it uses less digits than its factorization.

21143140001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23911.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 21143140001 its reverse (10004134112), we get a palindrome (31147274113).

The spelling of 21143140001 in words is "twenty-one billion, one hundred forty-three million, one hundred forty thousand, one".