20240140111 has 4 divisors (see below), whose sum is σ = 20240988424. Its totient is φ = 20239291800.

The previous prime is 20240140103. The next prime is 20240140121. The reversal of 20240140111 is 11104104202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20240140111 - 2³ = 20240140103 is a prime.

It is a super-2 number, since 2×20240140111² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20240140121) 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 3 ways as a sum of consecutive naturals, for example, 387300 + ... + 436441.

It is an arithmetic number, because the mean of its divisors is an integer number (5060247106).

Almost surely, 2^20240140111 is an apocalyptic number.

20240140111 is a deficient number, since it is larger than the sum of its proper divisors (848313).

20240140111 is an equidigital number, since it uses as much as digits as its factorization.

20240140111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848312.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20240140111 its reverse (11104104202), we get a palindrome (31344244313).

The spelling of 20240140111 in words is "twenty billion, two hundred forty million, one hundred forty thousand, one hundred eleven".