1030012231921 has 2 divisors, whose sum is σ = 1030012231922. Its totient is φ = 1030012231920.

The previous prime is 1030012231903. The next prime is 1030012231933. The reversal of 1030012231921 is 1291322100301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 736660007521 + 293352224400 = 858289^2 + 541620^2 .

It is a cyclic number.

It is not a de Polignac number, because 1030012231921 - 2⁷ = 1030012231793 is a prime.

It is not a weakly prime, because it can be changed into another prime (1030013231921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515006115960 + 515006115961.

It is an arithmetic number, because the mean of its divisors is an integer number (515006115961).

Almost surely, 2^{1030012231921} is an apocalyptic number.

It is an amenable number.

1030012231921 is a deficient number, since it is larger than the sum of its proper divisors (1).

1030012231921 is an equidigital number, since it uses as much as digits as its factorization.

1030012231921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 25.

The spelling of 1030012231921 in words is "one trillion, thirty billion, twelve million, two hundred thirty-one thousand, nine hundred twenty-one".