1020444311 has 2 divisors, whose sum is σ = 1020444312. Its totient is φ = 1020444310.

The previous prime is 1020444301. The next prime is 1020444331. The reversal of 1020444311 is 1134440201.

It is an a-pointer prime, because the next prime (1020444331) can be obtained adding 1020444311 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1020444311 - 2²² = 1016250007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020444301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510222155 + 510222156.

It is an arithmetic number, because the mean of its divisors is an integer number (510222156).

Almost surely, 2^1020444311 is an apocalyptic number.

1020444311 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020444311 is an equidigital number, since it uses as much as digits as its factorization.

1020444311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1020444311 is about 31944.3940465303. The cubic root of 1020444311 is about 1006.7688496311.

Adding to 1020444311 its reverse (1134440201), we get a palindrome (2154884512).

The spelling of 1020444311 in words is "one billion, twenty million, four hundred forty-four thousand, three hundred eleven".