20443312342134 has 48 divisors (see below), whose sum is σ = 48320867649600. Its totient is φ = 6194903236080.

The previous prime is 20443312342099. The next prime is 20443312342157. The reversal of 20443312342134 is 43124321334402.

20443312342134 is a `hidden beast` number, since 2 + 0 + 4 + 433 + 1 + 2 + 3 + 4 + 213 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48710317 + ... + 49128215.

It is an arithmetic number, because the mean of its divisors is an integer number (1006684742700).

Almost surely, 2^{20443312342134} is an apocalyptic number.

20443312342134 is an abundant number, since it is smaller than the sum of its proper divisors (27877555307466).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20443312342134 is a wasteful number, since it uses less digits than its factorization.

20443312342134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664985 (or 664982 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 36.

Adding to 20443312342134 its reverse (43124321334402), we get a palindrome (63567633676536).

The spelling of 20443312342134 in words is "twenty trillion, four hundred forty-three billion, three hundred twelve million, three hundred forty-two thousand, one hundred thirty-four".