20132320140 has 36 divisors (see below), whose sum is σ = 61068038304. Its totient is φ = 5368618656.

The previous prime is 20132320133. The next prime is 20132320171. The reversal of 20132320140 is 4102323102.

20132320140 is a `hidden beast` number, since 201 + 3 + 2 + 320 + 140 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55922932 + ... + 55923291.

Almost surely, 2^20132320140 is an apocalyptic number.

20132320140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20132320140 is an abundant number, since it is smaller than the sum of its proper divisors (40935718164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20132320140 is a wasteful number, since it uses less digits than its factorization.

20132320140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111846238 (or 111846233 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20132320140 its reverse (4102323102), we get a palindrome (24234643242).

The spelling of 20132320140 in words is "twenty billion, one hundred thirty-two million, three hundred twenty thousand, one hundred forty".