21141430985 has 8 divisors (see below), whose sum is σ = 25371044160. Its totient is φ = 16912260144.

The previous prime is 21141430951. The next prime is 21141430997. The reversal of 21141430985 is 58903414112.

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 21141430985 - 2¹⁴ = 21141414601 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5684 + ... + 205706.

It is an arithmetic number, because the mean of its divisors is an integer number (3171380520).

Almost surely, 2^21141430985 is an apocalyptic number.

It is an amenable number.

21141430985 is a deficient number, since it is larger than the sum of its proper divisors (4229613175).

21141430985 is a wasteful number, since it uses less digits than its factorization.

21141430985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221167.

The product of its (nonzero) digits is 34560, while the sum is 38.

The spelling of 21141430985 in words is "twenty-one billion, one hundred forty-one million, four hundred thirty thousand, nine hundred eighty-five".