1121716019 has 2 divisors, whose sum is σ = 1121716020. Its totient is φ = 1121716018.

The previous prime is 1121715979. The next prime is 1121716031. The reversal of 1121716019 is 9106171211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1121716019 - 2¹⁶ = 1121650483 is a prime.

It is a super-2 number, since 2×1121716019² = 2516493654562416722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 1121715982 and 1121716000.

It is not a weakly prime, because it can be changed into another prime (1121712019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560858009 + 560858010.

It is an arithmetic number, because the mean of its divisors is an integer number (560858010).

Almost surely, 2^1121716019 is an apocalyptic number.

1121716019 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121716019 is an equidigital number, since it uses as much as digits as its factorization.

1121716019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 29.

The square root of 1121716019 is about 33492.0291860616. The cubic root of 1121716019 is about 1039.0289317796.

The spelling of 1121716019 in words is "one billion, one hundred twenty-one million, seven hundred sixteen thousand, nineteen".