20140513443 has 12 divisors (see below), whose sum is σ = 29093304240. Its totient is φ = 13426339056.

The previous prime is 20140513433. The next prime is 20140513447. The reversal of 20140513443 is 34431504102.

It is a happy number.

20140513443 is a `hidden beast` number, since 2 + 0 + 140 + 513 + 4 + 4 + 3 = 666.

It is not a de Polignac number, because 20140513443 - 2⁸ = 20140513187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20140513447) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 192913 + ... + 278381.

It is an arithmetic number, because the mean of its divisors is an integer number (2424442020).

Almost surely, 2^20140513443 is an apocalyptic number.

20140513443 is a deficient number, since it is larger than the sum of its proper divisors (8952790797).

20140513443 is a wasteful number, since it uses less digits than its factorization.

20140513443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111658 (or 111655 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The spelling of 20140513443 in words is "twenty billion, one hundred forty million, five hundred thirteen thousand, four hundred forty-three".