2121676033 has 4 divisors (see below), whose sum is σ = 2121778900. Its totient is φ = 2121573168.

The previous prime is 2121675961. The next prime is 2121676087. The reversal of 2121676033 is 3306761212.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 751417744 + 1370258289 = 27412^2 + 37017^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2121676033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2121675986 and 2121676004.

It is not an unprimeable number, because it can be changed into a prime (2121676133) 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, 8610 + ... + 65707.

It is an arithmetic number, because the mean of its divisors is an integer number (530444725).

Almost surely, 2^2121676033 is an apocalyptic number.

It is an amenable number.

2121676033 is a deficient number, since it is larger than the sum of its proper divisors (102867).

2121676033 is an equidigital number, since it uses as much as digits as its factorization.

2121676033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102866.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 2121676033 is about 46061.6546923794. The cubic root of 2121676033 is about 1284.9701039238.

The spelling of 2121676033 in words is "two billion, one hundred twenty-one million, six hundred seventy-six thousand, thirty-three".