20423314311 has 8 divisors (see below), whose sum is σ = 27233270400. Its totient is φ = 13614450552.

The previous prime is 20423314283. The next prime is 20423314343. The reversal of 20423314311 is 11341332402.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20423314311 - 2⁷ = 20423314183 is a prime.

It is a super-2 number, since 2×20423314311² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20423314211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228411 + ... + 304988.

It is an arithmetic number, because the mean of its divisors is an integer number (3404158800).

Almost surely, 2^20423314311 is an apocalyptic number.

20423314311 is a deficient number, since it is larger than the sum of its proper divisors (6809956089).

20423314311 is a wasteful number, since it uses less digits than its factorization.

20423314311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546165.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 20423314311 its reverse (11341332402), we get a palindrome (31764646713).

The spelling of 20423314311 in words is "twenty billion, four hundred twenty-three million, three hundred fourteen thousand, three hundred eleven".