20310155434323 has 48 divisors (see below), whose sum is σ = 31406482179072. Its totient is φ = 13102642620000.

The previous prime is 20310155434307. The next prime is 20310155434337. The reversal of 20310155434323 is 32343455101302.

20310155434323 is a `hidden beast` number, since 2 + 0 + 3 + 101 + 5 + 543 + 4 + 3 + 2 + 3 = 666.

It is not a de Polignac number, because 20310155434323 - 2⁴ = 20310155434307 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20310155434343) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 172454368 + ... + 172572098.

It is an arithmetic number, because the mean of its divisors is an integer number (654301712064).

Almost surely, 2^{20310155434323} is an apocalyptic number.

20310155434323 is a deficient number, since it is larger than the sum of its proper divisors (11096326744749).

20310155434323 is a wasteful number, since it uses less digits than its factorization.

20310155434323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140678 (or 140666 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

The spelling of 20310155434323 in words is "twenty trillion, three hundred ten billion, one hundred fifty-five million, four hundred thirty-four thousand, three hundred twenty-three".