20132320139 has 6 divisors (see below), whose sum is σ = 20569783404. Its totient is φ = 19703970740.

The previous prime is 20132320133. The next prime is 20132320171. The reversal of 20132320139 is 93102323102.

It is not a de Polignac number, because 20132320139 - 2¹⁶ = 20132254603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20132320133) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4554677 + ... + 4559094.

It is an arithmetic number, because the mean of its divisors is an integer number (3428297234).

Almost surely, 2^20132320139 is an apocalyptic number.

20132320139 is a deficient number, since it is larger than the sum of its proper divisors (437463265).

20132320139 is an frugal number, since it uses more digits than its factorization.

20132320139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9113865 (or 9113818 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 26.

The spelling of 20132320139 in words is "twenty billion, one hundred thirty-two million, three hundred twenty thousand, one hundred thirty-nine".