1029823450961 has 2 divisors, whose sum is σ = 1029823450962. Its totient is φ = 1029823450960.

The previous prime is 1029823450919. The next prime is 1029823450967. The reversal of 1029823450961 is 1690543289201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 993548439361 + 36275011600 = 996769^2 + 190460^2 .

It is a cyclic number.

It is not a de Polignac number, because 1029823450961 - 2¹⁰ = 1029823449937 is a prime.

It is not a weakly prime, because it can be changed into another prime (1029823450967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 514911725480 + 514911725481.

It is an arithmetic number, because the mean of its divisors is an integer number (514911725481).

Almost surely, 2^{1029823450961} is an apocalyptic number.

It is an amenable number.

1029823450961 is a deficient number, since it is larger than the sum of its proper divisors (1).

1029823450961 is an equidigital number, since it uses as much as digits as its factorization.

1029823450961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 933120, while the sum is 50.

The spelling of 1029823450961 in words is "one trillion, twenty-nine billion, eight hundred twenty-three million, four hundred fifty thousand, nine hundred sixty-one".