20011222323 has 6 divisors (see below), whose sum is σ = 28905098924. Its totient is φ = 13340814876.

The previous prime is 20011222307. The next prime is 20011222367. The reversal of 20011222323 is 32322211002.

It is not a de Polignac number, because 20011222323 - 2⁴ = 20011222307 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20011222296 and 20011222305.

It is not an unprimeable number, because it can be changed into a prime (20011222303) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1111734565 + ... + 1111734582.

Almost surely, 2^20011222323 is an apocalyptic number.

20011222323 is a deficient number, since it is larger than the sum of its proper divisors (8893876601).

20011222323 is a wasteful number, since it uses less digits than its factorization.

20011222323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2223469153 (or 2223469150 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20011222323 its reverse (32322211002), we get a palindrome (52333433325).

The spelling of 20011222323 in words is "twenty billion, eleven million, two hundred twenty-two thousand, three hundred twenty-three".