20116240243 has 16 divisors (see below), whose sum is σ = 22980116736. Its totient is φ = 17430510240.

The previous prime is 20116240241. The next prime is 20116240273. The reversal of 20116240243 is 34204261102.

It is a happy number.

It is not a de Polignac number, because 20116240243 - 2¹ = 20116240241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20116240241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68880 + ... + 212077.

It is an arithmetic number, because the mean of its divisors is an integer number (1436257296).

Almost surely, 2^20116240243 is an apocalyptic number.

20116240243 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

20116240243 is a deficient number, since it is larger than the sum of its proper divisors (2863876493).

20116240243 is a wasteful number, since it uses less digits than its factorization.

20116240243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281274.

The product of its (nonzero) digits is 2304, while the sum is 25.

The spelling of 20116240243 in words is "twenty billion, one hundred sixteen million, two hundred forty thousand, two hundred forty-three".