2121123122313 has 16 divisors (see below), whose sum is σ = 3055508566656. Its totient is φ = 1301109402240.

The previous prime is 2121123122303. The next prime is 2121123122359. The reversal of 2121123122313 is 3132213211212.

It is not a de Polignac number, because 2121123122313 - 2¹⁰ = 2121123121289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2121123122303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87428020 + ... + 87452277.

It is an arithmetic number, because the mean of its divisors is an integer number (190969285416).

Almost surely, 2^{2121123122313} is an apocalyptic number.

It is an amenable number.

2121123122313 is a deficient number, since it is larger than the sum of its proper divisors (934385444343).

2121123122313 is a wasteful number, since it uses less digits than its factorization.

2121123122313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174880624.

The product of its digits is 864, while the sum is 24.

Adding to 2121123122313 its reverse (3132213211212), we get a palindrome (5253336333525).

The spelling of 2121123122313 in words is "two trillion, one hundred twenty-one billion, one hundred twenty-three million, one hundred twenty-two thousand, three hundred thirteen".