2121101232313 has 16 divisors (see below), whose sum is σ = 2427919122816. Its totient is φ = 1815235424640.

The previous prime is 2121101232227. The next prime is 2121101232317. The reversal of 2121101232313 is 3132321011212.

It is a cyclic number.

It is not a de Polignac number, because 2121101232313 - 2²⁵ = 2121067677881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2121101232317) 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, 21754770 + ... + 21852052.

It is an arithmetic number, because the mean of its divisors is an integer number (151744945176).

Almost surely, 2^{2121101232313} is an apocalyptic number.

It is an amenable number.

2121101232313 is a deficient number, since it is larger than the sum of its proper divisors (306817890503).

2121101232313 is an equidigital number, since it uses as much as digits as its factorization.

2121101232313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102144.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 2121101232313 its reverse (3132321011212), we get a palindrome (5253422243525).

The spelling of 2121101232313 in words is "two trillion, one hundred twenty-one billion, one hundred one million, two hundred thirty-two thousand, three hundred thirteen".