20346321261042 has 24 divisors (see below), whose sum is σ = 50381366932416. Its totient is φ = 5813234645976.

The previous prime is 20346321261031. The next prime is 20346321261067. The reversal of 20346321261042 is 24016212364302.

20346321261042 is a `hidden beast` number, since 2 + 0 + 3 + 4 + 6 + 32 + 1 + 2 + 610 + 4 + 2 = 666.

It is a super-2 number, since 2×20346321261042² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20346321260988 and 20346321261006.

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 11 ways as a sum of consecutive naturals, for example, 80739369958 + ... + 80739370209.

It is an arithmetic number, because the mean of its divisors is an integer number (2099223622184).

Almost surely, 2^{20346321261042} is an apocalyptic number.

20346321261042 is an abundant number, since it is smaller than the sum of its proper divisors (30035045671374).

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

20346321261042 is a wasteful number, since it uses less digits than its factorization.

20346321261042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161478740182 (or 161478740179 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The spelling of 20346321261042 in words is "twenty trillion, three hundred forty-six billion, three hundred twenty-one million, two hundred sixty-one thousand, forty-two".