1081369903 has 2 divisors, whose sum is σ = 1081369904. Its totient is φ = 1081369902.

The previous prime is 1081369901. The next prime is 1081369921. The reversal of 1081369903 is 3099631801.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1081369903 - 2¹ = 1081369901 is a prime.

It is a super-2 number, since 2×1081369903² = 2338721734228458818, which contains 22 as substring.

Together with 1081369901, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1081369901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 540684951 + 540684952.

It is an arithmetic number, because the mean of its divisors is an integer number (540684952).

Almost surely, 2^1081369903 is an apocalyptic number.

1081369903 is a deficient number, since it is larger than the sum of its proper divisors (1).

1081369903 is an equidigital number, since it uses as much as digits as its factorization.

1081369903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 1081369903 is about 32884.1892556286. The cubic root of 1081369903 is about 1026.4191812365.

The spelling of 1081369903 in words is "one billion, eighty-one million, three hundred sixty-nine thousand, nine hundred three".