1973313019 has 2 divisors, whose sum is σ = 1973313020. Its totient is φ = 1973313018.

The previous prime is 1973312993. The next prime is 1973313031. The reversal of 1973313019 is 9103133791.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1973313019 - 2⁵ = 1973312987 is a prime.

It is a super-2 number, since 2×1973313019² = 7787928541909788722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1973313079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 986656509 + 986656510.

It is an arithmetic number, because the mean of its divisors is an integer number (986656510).

Almost surely, 2^1973313019 is an apocalyptic number.

1973313019 is a deficient number, since it is larger than the sum of its proper divisors (1).

1973313019 is an equidigital number, since it uses as much as digits as its factorization.

1973313019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15309, while the sum is 37.

The square root of 1973313019 is about 44421.9880126948. The cubic root of 1973313019 is about 1254.2920233479.

The spelling of 1973313019 in words is "one billion, nine hundred seventy-three million, three hundred thirteen thousand, nineteen".