1031233221197 has 2 divisors, whose sum is σ = 1031233221198. Its totient is φ = 1031233221196.

The previous prime is 1031233221173. The next prime is 1031233221209. The reversal of 1031233221197 is 7911223321301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 963393288676 + 67839932521 = 981526^2 + 260461^2 .

It is an emirp because it is prime and its reverse (7911223321301) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1031233221197 - 2⁶ = 1031233221133 is a prime.

It is a super-2 number, since 2×1031233221197² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1031233221497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515616610598 + 515616610599.

It is an arithmetic number, because the mean of its divisors is an integer number (515616610599).

Almost surely, 2^{1031233221197} is an apocalyptic number.

It is an amenable number.

1031233221197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031233221197 is an equidigital number, since it uses as much as digits as its factorization.

1031233221197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 35.

Adding to 1031233221197 its reverse (7911223321301), we get a palindrome (8942456542498).

The spelling of 1031233221197 in words is "one trillion, thirty-one billion, two hundred thirty-three million, two hundred twenty-one thousand, one hundred ninety-seven".