20011244043 has 32 divisors (see below), whose sum is σ = 31395893760. Its totient is φ = 11099370240.

The previous prime is 20011243991. The next prime is 20011244053. The reversal of 20011244043 is 34044211002.

It is not a de Polignac number, because 20011244043 - 2¹⁴ = 20011227659 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (20011244053) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 110628 + ... + 228606.

It is an arithmetic number, because the mean of its divisors is an integer number (981121680).

Almost surely, 2^20011244043 is an apocalyptic number.

20011244043 is a deficient number, since it is larger than the sum of its proper divisors (11384649717).

20011244043 is a wasteful number, since it uses less digits than its factorization.

20011244043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118227.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 20011244043 its reverse (34044211002), we get a palindrome (54055455045).

The spelling of 20011244043 in words is "twenty billion, eleven million, two hundred forty-four thousand, forty-three".