2102333381 has 2 divisors, whose sum is σ = 2102333382. Its totient is φ = 2102333380.

The previous prime is 2102333357. The next prime is 2102333447. The reversal of 2102333381 is 1833332012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1408801156 + 693532225 = 37534^2 + 26335^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2102333381 is a prime.

It is a super-2 number, since 2×2102333381² = 8839611289733782322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2102333381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2102233381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051166690 + 1051166691.

It is an arithmetic number, because the mean of its divisors is an integer number (1051166691).

Almost surely, 2^2102333381 is an apocalyptic number.

It is an amenable number.

2102333381 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102333381 is an equidigital number, since it uses as much as digits as its factorization.

2102333381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 2102333381 is about 45851.2091552666. The cubic root of 2102333381 is about 1281.0532876949.

Adding to 2102333381 its reverse (1833332012), we get a palindrome (3935665393).

The spelling of 2102333381 in words is "two billion, one hundred two million, three hundred thirty-three thousand, three hundred eighty-one".