1083881221 has 2 divisors, whose sum is σ = 1083881222. Its totient is φ = 1083881220.

The previous prime is 1083881213. The next prime is 1083881231. The reversal of 1083881221 is 1221883801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 823058721 + 260822500 = 28689^2 + 16150^2 .

It is a cyclic number.

It is not a de Polignac number, because 1083881221 - 2³ = 1083881213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1083881231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 541940610 + 541940611.

It is an arithmetic number, because the mean of its divisors is an integer number (541940611).

Almost surely, 2^1083881221 is an apocalyptic number.

It is an amenable number.

1083881221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1083881221 is an equidigital number, since it uses as much as digits as its factorization.

1083881221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6144, while the sum is 34.

The square root of 1083881221 is about 32922.3513892917. The cubic root of 1083881221 is about 1027.2131346951.

The spelling of 1083881221 in words is "one billion, eighty-three million, eight hundred eighty-one thousand, two hundred twenty-one".