1230193544917 has 2 divisors, whose sum is σ = 1230193544918. Its totient is φ = 1230193544916.

The previous prime is 1230193544911. The next prime is 1230193544929. The reversal of 1230193544917 is 7194453910321.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 773117491441 + 457076053476 = 879271^2 + 676074^2 .

It is a cyclic number.

It is not a de Polignac number, because 1230193544917 - 2¹¹ = 1230193542869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1230193544911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615096772458 + 615096772459.

It is an arithmetic number, because the mean of its divisors is an integer number (615096772459).

Almost surely, 2^{1230193544917} is an apocalyptic number.

It is an amenable number.

1230193544917 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230193544917 is an equidigital number, since it uses as much as digits as its factorization.

1230193544917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 816480, while the sum is 49.

The spelling of 1230193544917 in words is "one trillion, two hundred thirty billion, one hundred ninety-three million, five hundred forty-four thousand, nine hundred seventeen".