1081380323 has 2 divisors, whose sum is σ = 1081380324. Its totient is φ = 1081380322.

The previous prime is 1081380283. The next prime is 1081380343. The reversal of 1081380323 is 3230831801.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1081380323 is a prime.

It is not a weakly prime, because it can be changed into another prime (1081380343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 540690161 + 540690162.

It is an arithmetic number, because the mean of its divisors is an integer number (540690162).

Almost surely, 2^1081380323 is an apocalyptic number.

1081380323 is a deficient number, since it is larger than the sum of its proper divisors (1).

1081380323 is an equidigital number, since it uses as much as digits as its factorization.

1081380323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 1081380323 is about 32884.3476900485. The cubic root of 1081380323 is about 1026.4224780589.

The spelling of 1081380323 in words is "one billion, eighty-one million, three hundred eighty thousand, three hundred twenty-three".