20611242093 has 32 divisors (see below), whose sum is σ = 30108378496. Its totient is φ = 12464990208.

The previous prime is 20611242083. The next prime is 20611242137. The reversal of 20611242093 is 39024211602.

It is not a de Polignac number, because 20611242093 - 2⁴ = 20611242077 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20611242093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20611242083) 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, 1122321 + ... + 1140537.

It is an arithmetic number, because the mean of its divisors is an integer number (940886828).

Almost surely, 2^20611242093 is an apocalyptic number.

It is an amenable number.

20611242093 is a deficient number, since it is larger than the sum of its proper divisors (9497136403).

20611242093 is a wasteful number, since it uses less digits than its factorization.

20611242093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18733.

The product of its (nonzero) digits is 5184, while the sum is 30.

Adding to 20611242093 its reverse (39024211602), we get a palindrome (59635453695).

The spelling of 20611242093 in words is "twenty billion, six hundred eleven million, two hundred forty-two thousand, ninety-three".