21324003139 has 8 divisors (see below), whose sum is σ = 22014046080. Its totient is φ = 20634096000.

The previous prime is 21324003131. The next prime is 21324003223. The reversal of 21324003139 is 93130042312.

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

It is not a de Polignac number, because 21324003139 - 2³ = 21324003131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21324003131) 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, 356697 + ... + 412165.

It is an arithmetic number, because the mean of its divisors is an integer number (2751755760).

Almost surely, 2^21324003139 is an apocalyptic number.

21324003139 is a deficient number, since it is larger than the sum of its proper divisors (690042941).

21324003139 is a wasteful number, since it uses less digits than its factorization.

21324003139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67901.

The product of its (nonzero) digits is 3888, while the sum is 28.

The spelling of 21324003139 in words is "twenty-one billion, three hundred twenty-four million, three thousand, one hundred thirty-nine".