20310110223143 has 4 divisors (see below), whose sum is σ = 21872426394168. Its totient is φ = 18747794052120.

The previous prime is 20310110223119. The next prime is 20310110223181. The reversal of 20310110223143 is 34132201101302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20310110223143 - 2⁸ = 20310110222887 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 (20310110223643) 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, 781158085493 + ... + 781158085518.

It is an arithmetic number, because the mean of its divisors is an integer number (5468106598542).

Almost surely, 2^{20310110223143} is an apocalyptic number.

20310110223143 is a deficient number, since it is larger than the sum of its proper divisors (1562316171025).

20310110223143 is a wasteful number, since it uses less digits than its factorization.

20310110223143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1562316171024.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 20310110223143 its reverse (34132201101302), we get a palindrome (54442311324445).

The spelling of 20310110223143 in words is "twenty trillion, three hundred ten billion, one hundred ten million, two hundred twenty-three thousand, one hundred forty-three".