20140543311 has 16 divisors (see below), whose sum is σ = 30693748224. Its totient is φ = 11507608224.

The previous prime is 20140543307. The next prime is 20140543363. The reversal of 20140543311 is 11334504102.

It is a happy number.

It is not a de Polignac number, because 20140543311 - 2² = 20140543307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20140543391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161350 + ... + 257516.

It is an arithmetic number, because the mean of its divisors is an integer number (1918359264).

Almost surely, 2^20140543311 is an apocalyptic number.

20140543311 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20140543311 is a deficient number, since it is larger than the sum of its proper divisors (10553204913).

20140543311 is an equidigital number, since it uses as much as digits as its factorization.

20140543311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106150.

The product of its (nonzero) digits is 1440, while the sum is 24.

The spelling of 20140543311 in words is "twenty billion, one hundred forty million, five hundred forty-three thousand, three hundred eleven".