20001113122331 has 8 divisors (see below), whose sum is σ = 21958373180784. Its totient is φ = 18067015905120.

The previous prime is 20001113122279. The next prime is 20001113122427. The reversal of 20001113122331 is 13322131110002.

It is a happy number.

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 20001113122331 - 2³⁰ = 20000039380507 is a prime.

It is a super-2 number, since 2×20001113122331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20001113122031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5790708500 + ... + 5790711953.

It is an arithmetic number, because the mean of its divisors is an integer number (2744796647598).

Almost surely, 2^{20001113122331} is an apocalyptic number.

20001113122331 is a deficient number, since it is larger than the sum of its proper divisors (1957260058453).

20001113122331 is a wasteful number, since it uses less digits than its factorization.

20001113122331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11581420621.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 20001113122331 its reverse (13322131110002), we get a palindrome (33323244232333).

The spelling of 20001113122331 in words is "twenty trillion, one billion, one hundred thirteen million, one hundred twenty-two thousand, three hundred thirty-one".