1012321031993 has 2 divisors, whose sum is σ = 1012321031994. Its totient is φ = 1012321031992.

The previous prime is 1012321031977. The next prime is 1012321032013. The reversal of 1012321031993 is 3991301232101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 977699731369 + 34621300624 = 988787^2 + 186068^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012321031993 - 2⁴ = 1012321031977 is a prime.

It is not a weakly prime, because it can be changed into another prime (1012321031903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506160515996 + 506160515997.

It is an arithmetic number, because the mean of its divisors is an integer number (506160515997).

Almost surely, 2^{1012321031993} is an apocalyptic number.

It is an amenable number.

1012321031993 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012321031993 is an equidigital number, since it uses as much as digits as its factorization.

1012321031993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8748, while the sum is 35.

The spelling of 1012321031993 in words is "one trillion, twelve billion, three hundred twenty-one million, thirty-one thousand, nine hundred ninety-three".