20123340430320 has 60 divisors (see below), whose sum is σ = 67580884947576. Its totient is φ = 5366224114560.

The previous prime is 20123340430309. The next prime is 20123340430337. The reversal of 20123340430320 is 2303404332102.

20123340430320 is a `hidden beast` number, since 2 + 0 + 1 + 2 + 334 + 0 + 4 + 3 + 0 + 320 = 666.

It is a tau number, because it is divible by the number of its divisors (60).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13974541246 + ... + 13974542685.

Almost surely, 2^{20123340430320} is an apocalyptic number.

20123340430320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20123340430320 is an abundant number, since it is smaller than the sum of its proper divisors (47457544517256).

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

20123340430320 is a wasteful number, since it uses less digits than its factorization.

20123340430320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27949083950 (or 27949083941 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 20123340430320 its reverse (2303404332102), we get a palindrome (22426744762422).

The spelling of 20123340430320 in words is "twenty trillion, one hundred twenty-three billion, three hundred forty million, four hundred thirty thousand, three hundred twenty".