2102161433 has 4 divisors (see below), whose sum is σ = 2146888320. Its totient is φ = 2057434548.

The previous prime is 2102161417. The next prime is 2102161441. The reversal of 2102161433 is 3341612012.

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 not a de Polignac number, because 2102161433 - 2⁴ = 2102161417 is a prime.

It is a super-2 number, since 2×2102161433² = 8838165380785226978, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2102161399 and 2102161408.

It is not an unprimeable number, because it can be changed into a prime (2102161403) 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, 22363373 + ... + 22363466.

It is an arithmetic number, because the mean of its divisors is an integer number (536722080).

Almost surely, 2^2102161433 is an apocalyptic number.

It is an amenable number.

2102161433 is a deficient number, since it is larger than the sum of its proper divisors (44726887).

2102161433 is an equidigital number, since it uses as much as digits as its factorization.

2102161433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44726886.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 2102161433 is about 45849.3340518704. The cubic root of 2102161433 is about 1281.0183613351.

Adding to 2102161433 its reverse (3341612012), we get a palindrome (5443773445).

The spelling of 2102161433 in words is "two billion, one hundred two million, one hundred sixty-one thousand, four hundred thirty-three".