20051345145223 has 8 divisors (see below), whose sum is σ = 23348197042848. Its totient is φ = 16862586752544.

The previous prime is 20051345145157. The next prime is 20051345145229. The reversal of 20051345145223 is 32254154315002.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20051345145223 - 2²¹ = 20051343048071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20051345145229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27023375836 + ... + 27023376577.

It is an arithmetic number, because the mean of its divisors is an integer number (2918524630356).

Almost surely, 2^{20051345145223} is an apocalyptic number.

20051345145223 is a deficient number, since it is larger than the sum of its proper divisors (3296851897625).

20051345145223 is an equidigital number, since it uses as much as digits as its factorization.

20051345145223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54046752473.

The product of its (nonzero) digits is 144000, while the sum is 37.

The spelling of 20051345145223 in words is "twenty trillion, fifty-one billion, three hundred forty-five million, one hundred forty-five thousand, two hundred twenty-three".