21230002000139 has 8 divisors (see below), whose sum is σ = 22499205382080. Its totient is φ = 19963063033216.

The previous prime is 21230002000133. The next prime is 21230002000159. The reversal of 21230002000139 is 93100020003212.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21230002000139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21230002000133) 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, 566084444 + ... + 566121945.

It is an arithmetic number, because the mean of its divisors is an integer number (2812400672760).

Almost surely, 2^{21230002000139} is an apocalyptic number.

21230002000139 is a deficient number, since it is larger than the sum of its proper divisors (1269203381941).

21230002000139 is a wasteful number, since it uses less digits than its factorization.

21230002000139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1132207509.

The product of its (nonzero) digits is 648, while the sum is 23.

The spelling of 21230002000139 in words is "twenty-one trillion, two hundred thirty billion, two million, one hundred thirty-nine", and thus it is an aban number.