20323465311 has 8 divisors (see below), whose sum is σ = 28524161920. Its totient is φ = 12835872792.

The previous prime is 20323465307. The next prime is 20323465313. The reversal of 20323465311 is 11356432302.

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

It is not a de Polignac number, because 20323465311 - 2² = 20323465307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20323465313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178275955 + ... + 178276068.

It is an arithmetic number, because the mean of its divisors is an integer number (3565520240).

Almost surely, 2^20323465311 is an apocalyptic number.

20323465311 is a deficient number, since it is larger than the sum of its proper divisors (8200696609).

20323465311 is a wasteful number, since it uses less digits than its factorization.

20323465311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356552045.

The product of its (nonzero) digits is 12960, while the sum is 30.

Adding to 20323465311 its reverse (11356432302), we get a palindrome (31679897613).

The spelling of 20323465311 in words is "twenty billion, three hundred twenty-three million, four hundred sixty-five thousand, three hundred eleven".