20112021323 has 4 divisors (see below), whose sum is σ = 20180663328. Its totient is φ = 20043379320.

The previous prime is 20112021301. The next prime is 20112021337. The reversal of 20112021323 is 32312021102.

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 20112021323 - 2¹² = 20112017227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20112027323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34320563 + ... + 34321148.

It is an arithmetic number, because the mean of its divisors is an integer number (5045165832).

Almost surely, 2^20112021323 is an apocalyptic number.

20112021323 is a deficient number, since it is larger than the sum of its proper divisors (68642005).

20112021323 is an equidigital number, since it uses as much as digits as its factorization.

20112021323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68642004.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20112021323 its reverse (32312021102), we get a palindrome (52424042425).

The spelling of 20112021323 in words is "twenty billion, one hundred twelve million, twenty-one thousand, three hundred twenty-three".