1142320019 has 2 divisors, whose sum is σ = 1142320020. Its totient is φ = 1142320018.

The previous prime is 1142320009. The next prime is 1142320031. The reversal of 1142320019 is 9100232411.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1142320019 is a prime.

It is a super-2 number, since 2×1142320019² = 2609790051616320722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1142319976 and 1142320003.

It is not a weakly prime, because it can be changed into another prime (1142320009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571160009 + 571160010.

It is an arithmetic number, because the mean of its divisors is an integer number (571160010).

Almost surely, 2^1142320019 is an apocalyptic number.

1142320019 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142320019 is an equidigital number, since it uses as much as digits as its factorization.

1142320019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 1142320019 is about 33798.2250865338. The cubic root of 1142320019 is about 1045.3520997831.

The spelling of 1142320019 in words is "one billion, one hundred forty-two million, three hundred twenty thousand, nineteen".