20012023221311 has 64 divisors (see below), whose sum is σ = 23627003166720. Its totient is φ = 16755271148160.

The previous prime is 20012023221277. The next prime is 20012023221313. The reversal of 20012023221311 is 11312232021002.

It is a cyclic number.

It is not a de Polignac number, because 20012023221311 - 2⁴² = 15613976710207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20012023221313) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4430377025 + ... + 4430381541.

It is an arithmetic number, because the mean of its divisors is an integer number (369171924480).

Almost surely, 2^{20012023221311} is an apocalyptic number.

20012023221311 is a deficient number, since it is larger than the sum of its proper divisors (3614979945409).

20012023221311 is a wasteful number, since it uses less digits than its factorization.

20012023221311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7524.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 20012023221311 its reverse (11312232021002), we get a palindrome (31324255242313).

The spelling of 20012023221311 in words is "twenty trillion, twelve billion, twenty-three million, two hundred twenty-one thousand, three hundred eleven".