20001333023011 has 4 divisors (see below), whose sum is σ = 20001347247024. Its totient is φ = 20001318799000.

The previous prime is 20001333022987. The next prime is 20001333023027. The reversal of 20001333023011 is 11032033310002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20001333023011 - 2¹⁹ = 20001332498723 is a prime.

It is a super-2 number, since 2×20001333023011² (a number of 27 digits) contains 22 as substring.

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 20001333023011.

It is not an unprimeable number, because it can be changed into a prime (20001333023041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4738780 + ... + 7903081.

It is an arithmetic number, because the mean of its divisors is an integer number (5000336811756).

Almost surely, 2^{20001333023011} is an apocalyptic number.

20001333023011 is a deficient number, since it is larger than the sum of its proper divisors (14224013).

20001333023011 is a wasteful number, since it uses less digits than its factorization.

20001333023011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14224012.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 20001333023011 its reverse (11032033310002), we get a palindrome (31033366333013).

The spelling of 20001333023011 in words is "twenty trillion, one billion, three hundred thirty-three million, twenty-three thousand, eleven".