20144020311 has 12 divisors (see below), whose sum is σ = 29212845480. Its totient is φ = 13375842000.

The previous prime is 20144020261. The next prime is 20144020313. The reversal of 20144020311 is 11302044102.

20144020311 is a `hidden beast` number, since 20 + 1 + 440 + 203 + 1 + 1 = 666.

It is not a de Polignac number, because 20144020311 - 2⁹ = 20144019799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20144020313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4456356 + ... + 4460873.

It is an arithmetic number, because the mean of its divisors is an integer number (2434403790).

Almost surely, 2^20144020311 is an apocalyptic number.

20144020311 is a deficient number, since it is larger than the sum of its proper divisors (9068825169).

20144020311 is a wasteful number, since it uses less digits than its factorization.

20144020311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8917486 (or 8917483 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 20144020311 its reverse (11302044102), we get a palindrome (31446064413).

The spelling of 20144020311 in words is "twenty billion, one hundred forty-four million, twenty thousand, three hundred eleven".