2110131220123 has 4 divisors (see below), whose sum is σ = 2111753151648. Its totient is φ = 2108509288600.

The previous prime is 2110131220103. The next prime is 2110131220187. The reversal of 2110131220123 is 3210221310112.

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 2110131220123 - 2²⁹ = 2109594349211 is a prime.

It is a super-2 number, since 2×2110131220123² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2110131220123.

It is not an unprimeable number, because it can be changed into a prime (2110131220103) 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, 810963811 + ... + 810966412.

It is an arithmetic number, because the mean of its divisors is an integer number (527938287912).

Almost surely, 2^{2110131220123} is an apocalyptic number.

2110131220123 is a deficient number, since it is larger than the sum of its proper divisors (1621931525).

2110131220123 is a wasteful number, since it uses less digits than its factorization.

2110131220123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1621931524.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 2110131220123 its reverse (3210221310112), we get a palindrome (5320352530235).

The spelling of 2110131220123 in words is "two trillion, one hundred ten billion, one hundred thirty-one million, two hundred twenty thousand, one hundred twenty-three".