20140543307 has 2 divisors, whose sum is σ = 20140543308. Its totient is φ = 20140543306.

The previous prime is 20140543273. The next prime is 20140543363. The reversal of 20140543307 is 70334504102.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20140543307 - 2⁶ = 20140543243 is a prime.

It is a super-2 number, since 2×20140543307² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20140543307.

It is not a weakly prime, because it can be changed into another prime (20140543387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10070271653 + 10070271654.

It is an arithmetic number, because the mean of its divisors is an integer number (10070271654).

Almost surely, 2^20140543307 is an apocalyptic number.

20140543307 is a deficient number, since it is larger than the sum of its proper divisors (1).

20140543307 is an equidigital number, since it uses as much as digits as its factorization.

20140543307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 29.

The spelling of 20140543307 in words is "twenty billion, one hundred forty million, five hundred forty-three thousand, three hundred seven".