1019391341 has 2 divisors, whose sum is σ = 1019391342. Its totient is φ = 1019391340.

The previous prime is 1019391337. The next prime is 1019391343. The reversal of 1019391341 is 1431939101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 883575625 + 135815716 = 29725^2 + 11654^2 .

It is a cyclic number.

It is not a de Polignac number, because 1019391341 - 2² = 1019391337 is a prime.

It is a super-2 number, since 2×1019391341² = 2078317412211556562, which contains 22 as substring.

Together with 1019391343, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1019391298 and 1019391307.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1019391343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 509695670 + 509695671.

It is an arithmetic number, because the mean of its divisors is an integer number (509695671).

Almost surely, 2^1019391341 is an apocalyptic number.

It is an amenable number.

1019391341 is a deficient number, since it is larger than the sum of its proper divisors (1).

1019391341 is an equidigital number, since it uses as much as digits as its factorization.

1019391341 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 32.

The square root of 1019391341 is about 31927.9084971127. The cubic root of 1019391341 is about 1006.4224442394.

The spelling of 1019391341 in words is "one billion, nineteen million, three hundred ninety-one thousand, three hundred forty-one".