1331113019 has 2 divisors, whose sum is σ = 1331113020. Its totient is φ = 1331113018.

The previous prime is 1331112947. The next prime is 1331113051. The reversal of 1331113019 is 9103111331.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1331113019 is a prime.

It is a super-2 number, since 2×1331113019² = 3543723738702588722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1331112985 and 1331113003.

It is not a weakly prime, because it can be changed into another prime (1331116019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665556509 + 665556510.

It is an arithmetic number, because the mean of its divisors is an integer number (665556510).

Almost surely, 2^1331113019 is an apocalyptic number.

1331113019 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331113019 is an equidigital number, since it uses as much as digits as its factorization.

1331113019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 243, while the sum is 23.

The square root of 1331113019 is about 36484.4215933321. The cubic root of 1331113019 is about 1100.0311338295.

The spelling of 1331113019 in words is "one billion, three hundred thirty-one million, one hundred thirteen thousand, nineteen".