2106123373 has 4 divisors (see below), whose sum is σ = 2107556608. Its totient is φ = 2104690140.

The previous prime is 2106123367. The next prime is 2106123379. The reversal of 2106123373 is 3733216012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (2106123367) and next prime (2106123379).

It is a cyclic number.

It is not a de Polignac number, because 2106123373 - 2⁹ = 2106122861 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 (2106123379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 714411 + ... + 717352.

It is an arithmetic number, because the mean of its divisors is an integer number (526889152).

Almost surely, 2^2106123373 is an apocalyptic number.

It is an amenable number.

2106123373 is a deficient number, since it is larger than the sum of its proper divisors (1433235).

2106123373 is a wasteful number, since it uses less digits than its factorization.

2106123373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1433234.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 2106123373 is about 45892.5197935350. The cubic root of 2106123373 is about 1281.8226339693.

Adding to 2106123373 its reverse (3733216012), we get a palindrome (5839339385).

The spelling of 2106123373 in words is "two billion, one hundred six million, one hundred twenty-three thousand, three hundred seventy-three".