20013344011 has 8 divisors (see below), whose sum is σ = 20176213824. Its totient is φ = 19850717760.

The previous prime is 20013343991. The next prime is 20013344017. The reversal of 20013344011 is 11044331002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20013344011 - 2²⁵ = 19979789579 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 20013344011.

It is not an unprimeable number, because it can be changed into a prime (20013344017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105966 + ... + 226396.

It is an arithmetic number, because the mean of its divisors is an integer number (2522026728).

Almost surely, 2^20013344011 is an apocalyptic number.

20013344011 is a deficient number, since it is larger than the sum of its proper divisors (162869813).

20013344011 is a wasteful number, since it uses less digits than its factorization.

20013344011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121781.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20013344011 its reverse (11044331002), we get a palindrome (31057675013).

The spelling of 20013344011 in words is "twenty billion, thirteen million, three hundred forty-four thousand, eleven".