20311371334 has 8 divisors (see below), whose sum is σ = 31290491088. Its totient is φ = 9881207640.

The previous prime is 20311371307. The next prime is 20311371347. The reversal of 20311371334 is 43317311302.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137238922 + ... + 137239069.

It is an arithmetic number, because the mean of its divisors is an integer number (3911311386).

Almost surely, 2^20311371334 is an apocalyptic number.

20311371334 is a deficient number, since it is larger than the sum of its proper divisors (10979119754).

20311371334 is a wasteful number, since it uses less digits than its factorization.

20311371334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274478030.

The product of its (nonzero) digits is 4536, while the sum is 28.

Adding to 20311371334 its reverse (43317311302), we get a palindrome (63628682636).

The spelling of 20311371334 in words is "twenty billion, three hundred eleven million, three hundred seventy-one thousand, three hundred thirty-four".