1020441324391 has 2 divisors, whose sum is σ = 1020441324392. Its totient is φ = 1020441324390.

The previous prime is 1020441324377. The next prime is 1020441324421. The reversal of 1020441324391 is 1934231440201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1020441324391 - 2⁵ = 1020441324359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020441324311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510220662195 + 510220662196.

It is an arithmetic number, because the mean of its divisors is an integer number (510220662196).

Almost surely, 2^{1020441324391} is an apocalyptic number.

1020441324391 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020441324391 is an equidigital number, since it uses as much as digits as its factorization.

1020441324391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 34.

Adding to 1020441324391 its reverse (1934231440201), we get a palindrome (2954672764592).

The spelling of 1020441324391 in words is "one trillion, twenty billion, four hundred forty-one million, three hundred twenty-four thousand, three hundred ninety-one".