20011233121113 has 16 divisors (see below), whose sum is σ = 28800746747136. Its totient is φ = 12286032817920.

The previous prime is 20011233121081. The next prime is 20011233121171. The reversal of 20011233121113 is 31112133211002.

It is not a de Polignac number, because 20011233121113 - 2⁵ = 20011233121081 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20011233121113.

It is not an unprimeable number, because it can be changed into a prime (20011233121193) 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, 595236720 + ... + 595270337.

It is an arithmetic number, because the mean of its divisors is an integer number (1800046671696).

Almost surely, 2^{20011233121113} is an apocalyptic number.

It is an amenable number.

20011233121113 is a deficient number, since it is larger than the sum of its proper divisors (8789513626023).

20011233121113 is a wasteful number, since it uses less digits than its factorization.

20011233121113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1190507504.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 20011233121113 its reverse (31112133211002), we get a palindrome (51123366332115).

The spelling of 20011233121113 in words is "twenty trillion, eleven billion, two hundred thirty-three million, one hundred twenty-one thousand, one hundred thirteen".