2281321019 has 2 divisors, whose sum is σ = 2281321020. Its totient is φ = 2281321018.

The previous prime is 2281320983. The next prime is 2281321039. The reversal of 2281321019 is 9101231822.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2281321019 is a prime.

It is a super-2 number, since 2×2281321019² = 10408851183462396722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2281320982 and 2281321000.

It is not a weakly prime, because it can be changed into another prime (2281321039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1140660509 + 1140660510.

It is an arithmetic number, because the mean of its divisors is an integer number (1140660510).

Almost surely, 2^2281321019 is an apocalyptic number.

2281321019 is a deficient number, since it is larger than the sum of its proper divisors (1).

2281321019 is an equidigital number, since it uses as much as digits as its factorization.

2281321019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 2281321019 is about 47763.1763914420. The cubic root of 2281321019 is about 1316.4230175515.

The spelling of 2281321019 in words is "two billion, two hundred eighty-one million, three hundred twenty-one thousand, nineteen".