1083203987 has 2 divisors, whose sum is σ = 1083203988. Its totient is φ = 1083203986.

The previous prime is 1083203923. The next prime is 1083204019. The reversal of 1083203987 is 7893023801.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1083203987 - 2⁶ = 1083203923 is a prime.

It is not a weakly prime, because it can be changed into another prime (1082203987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 541601993 + 541601994.

It is an arithmetic number, because the mean of its divisors is an integer number (541601994).

Almost surely, 2^1083203987 is an apocalyptic number.

1083203987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1083203987 is an equidigital number, since it uses as much as digits as its factorization.

1083203987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 1083203987 is about 32912.0644597084. The cubic root of 1083203987 is about 1026.9991479637. Note that the first 3 decimals are identical.

The spelling of 1083203987 in words is "one billion, eighty-three million, two hundred three thousand, nine hundred eighty-seven".