2231320019 has 2 divisors, whose sum is σ = 2231320020. Its totient is φ = 2231320018.

The previous prime is 2231319941. The next prime is 2231320033. The reversal of 2231320019 is 9100231322.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2231320019 - 2²⁸ = 1962884563 is a prime.

It is a super-3 number, since 3×2231320019³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 2231319976 and 2231320003.

It is not a weakly prime, because it can be changed into another prime (2231320219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1115660009 + 1115660010.

It is an arithmetic number, because the mean of its divisors is an integer number (1115660010).

Almost surely, 2^2231320019 is an apocalyptic number.

2231320019 is a deficient number, since it is larger than the sum of its proper divisors (1).

2231320019 is an equidigital number, since it uses as much as digits as its factorization.

2231320019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 2231320019 is about 47236.8502231044. The cubic root of 2231320019 is about 1306.7342891634.

The spelling of 2231320019 in words is "two billion, two hundred thirty-one million, three hundred twenty thousand, nineteen".