2126310121 has 8 divisors (see below), whose sum is σ = 2410392320. Its totient is φ = 1859445072.

The previous prime is 2126310103. The next prime is 2126310133. The reversal of 2126310121 is 1210136212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2126310121 - 2¹³ = 2126301929 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2126310101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4304025 + ... + 4304518.

It is an arithmetic number, because the mean of its divisors is an integer number (301299040).

Almost surely, 2^2126310121 is an apocalyptic number.

It is an amenable number.

2126310121 is a deficient number, since it is larger than the sum of its proper divisors (284082199).

2126310121 is a wasteful number, since it uses less digits than its factorization.

2126310121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8608575.

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

The square root of 2126310121 is about 46111.9303543020. The cubic root of 2126310121 is about 1285.9049520310.

Adding to 2126310121 its reverse (1210136212), we get a palindrome (3336446333).

The spelling of 2126310121 in words is "two billion, one hundred twenty-six million, three hundred ten thousand, one hundred twenty-one".