20315333232142 has 16 divisors (see below), whose sum is σ = 32817365087472. Its totient is φ = 9376225266240.

The previous prime is 20315333232133. The next prime is 20315333232199. The reversal of 20315333232142 is 24123233351302.

It is a junction number, because it is equal to n+sod(n) for n = 20315333232098 and 20315333232107.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 364543 + ... + 6384634.

It is an arithmetic number, because the mean of its divisors is an integer number (2051085317967).

Almost surely, 2^{20315333232142} is an apocalyptic number.

20315333232142 is a deficient number, since it is larger than the sum of its proper divisors (12502031855330).

20315333232142 is a wasteful number, since it uses less digits than its factorization.

20315333232142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6864963.

The product of its (nonzero) digits is 77760, while the sum is 34.

Adding to 20315333232142 its reverse (24123233351302), we get a palindrome (44438566583444).

The spelling of 20315333232142 in words is "twenty trillion, three hundred fifteen billion, three hundred thirty-three million, two hundred thirty-two thousand, one hundred forty-two".