1021123841 has 2 divisors, whose sum is σ = 1021123842. Its totient is φ = 1021123840.

The previous prime is 1021123823. The next prime is 1021123867. The reversal of 1021123841 is 1483211201.

1021123841 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 700713841 + 320410000 = 26471^2 + 17900^2 .

It is a cyclic number.

It is not a de Polignac number, because 1021123841 - 2⁶ = 1021123777 is a prime.

It is not a weakly prime, because it can be changed into another prime (1021123871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510561920 + 510561921.

It is an arithmetic number, because the mean of its divisors is an integer number (510561921).

Almost surely, 2^1021123841 is an apocalyptic number.

It is an amenable number.

1021123841 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021123841 is an equidigital number, since it uses as much as digits as its factorization.

1021123841 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 23.

The square root of 1021123841 is about 31955.0284149459. The cubic root of 1021123841 is about 1006.9922744758.

The spelling of 1021123841 in words is "one billion, twenty-one million, one hundred twenty-three thousand, eight hundred forty-one".