2102120312233 has 4 divisors (see below), whose sum is σ = 2102996563200. Its totient is φ = 2101244061268.

The previous prime is 2102120312209. The next prime is 2102120312273. The reversal of 2102120312233 is 3322130212012.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2102120312233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2102120312273) 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, 438121885 + ... + 438126682.

It is an arithmetic number, because the mean of its divisors is an integer number (525749140800).

Almost surely, 2^{2102120312233} is an apocalyptic number.

It is an amenable number.

2102120312233 is a deficient number, since it is larger than the sum of its proper divisors (876250967).

2102120312233 is an equidigital number, since it uses as much as digits as its factorization.

2102120312233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876250966.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 2102120312233 its reverse (3322130212012), we get a palindrome (5424250524245).

The spelling of 2102120312233 in words is "two trillion, one hundred two billion, one hundred twenty million, three hundred twelve thousand, two hundred thirty-three".