1012232021993 has 2 divisors, whose sum is σ = 1012232021994. Its totient is φ = 1012232021992.

The previous prime is 1012232021959. The next prime is 1012232022019. The reversal of 1012232021993 is 3991202322101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 915491116969 + 96740905024 = 956813^2 + 311032^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012232021993 - 2⁶ = 1012232021929 is a prime.

It is a super-2 number, since 2×1012232021993² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1012232021903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506116010996 + 506116010997.

It is an arithmetic number, because the mean of its divisors is an integer number (506116010997).

Almost surely, 2^{1012232021993} is an apocalyptic number.

It is an amenable number.

1012232021993 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012232021993 is an equidigital number, since it uses as much as digits as its factorization.

1012232021993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 35.

The spelling of 1012232021993 in words is "one trillion, twelve billion, two hundred thirty-two million, twenty-one thousand, nine hundred ninety-three".