20134333140 has 24 divisors (see below), whose sum is σ = 56376132960. Its totient is φ = 5369155488.

The previous prime is 20134333073. The next prime is 20134333171. The reversal of 20134333140 is 4133343102.

It is a self number, because there is not a number n which added to its sum of digits gives 20134333140.

It is a congruent number.

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, 167786050 + ... + 167786169.

It is an arithmetic number, because the mean of its divisors is an integer number (2349005540).

Almost surely, 2^20134333140 is an apocalyptic number.

20134333140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20134333140 is an abundant number, since it is smaller than the sum of its proper divisors (36241799820).

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

20134333140 is a wasteful number, since it uses less digits than its factorization.

20134333140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335572231 (or 335572229 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 20134333140 its reverse (4133343102), we get a palindrome (24267676242).

The spelling of 20134333140 in words is "twenty billion, one hundred thirty-four million, three hundred thirty-three thousand, one hundred forty".