20321434623346 has 8 divisors (see below), whose sum is σ = 30650561614764. Its totient is φ = 10104580751760.

The previous prime is 20321434623317. The next prime is 20321434623353. The reversal of 20321434623346 is 64332643412302.

It can be written as a sum of positive squares in 2 ways, for example, as 13191867107721 + 7129567515625 = 3632061^2 + 2670125^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28068279505 + ... + 28068280228.

Almost surely, 2^{20321434623346} is an apocalyptic number.

20321434623346 is a deficient number, since it is larger than the sum of its proper divisors (10329126991418).

20321434623346 is a wasteful number, since it uses less digits than its factorization.

20321434623346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56136559916.

The product of its (nonzero) digits is 1492992, while the sum is 43.

The spelling of 20321434623346 in words is "twenty trillion, three hundred twenty-one billion, four hundred thirty-four million, six hundred twenty-three thousand, three hundred forty-six".