20123203279342 has 8 divisors (see below), whose sum is σ = 30187300185936. Its totient is φ = 10060769884032.

The previous prime is 20123203279339. The next prime is 20123203279343. The reversal of 20123203279342 is 24397230232102.

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

It is a junction number, because it is equal to n+sod(n) for n = 20123203279295 and 20123203279304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20123203279343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 415847578 + ... + 415895965.

It is an arithmetic number, because the mean of its divisors is an integer number (3773412523242).

Almost surely, 2^{20123203279342} is an apocalyptic number.

20123203279342 is a deficient number, since it is larger than the sum of its proper divisors (10064096906594).

20123203279342 is a wasteful number, since it uses less digits than its factorization.

20123203279342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 831755642.

The product of its (nonzero) digits is 217728, while the sum is 40.

The spelling of 20123203279342 in words is "twenty trillion, one hundred twenty-three billion, two hundred three million, two hundred seventy-nine thousand, three hundred forty-two".