1022320087 has 2 divisors, whose sum is σ = 1022320088. Its totient is φ = 1022320086.

The previous prime is 1022320073. The next prime is 1022320147. The reversal of 1022320087 is 7800232201.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1022320087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1022320487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511160043 + 511160044.

It is an arithmetic number, because the mean of its divisors is an integer number (511160044).

Almost surely, 2^1022320087 is an apocalyptic number.

1022320087 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022320087 is an equidigital number, since it uses as much as digits as its factorization.

1022320087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 1022320087 is about 31973.7405850489. The cubic root of 1022320087 is about 1007.3853513119.

Adding to 1022320087 its reverse (7800232201), we get a palindrome (8822552288).

The spelling of 1022320087 in words is "one billion, twenty-two million, three hundred twenty thousand, eighty-seven".