1194231510397 has 2 divisors, whose sum is σ = 1194231510398. Its totient is φ = 1194231510396.

The previous prime is 1194231510347. The next prime is 1194231510421. The reversal of 1194231510397 is 7930151324911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 956931976441 + 237299533956 = 978229^2 + 487134^2 .

It is an emirp because it is prime and its reverse (7930151324911) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1194231510397 - 2³⁵ = 1159871772029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1194231510347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 597115755198 + 597115755199.

It is an arithmetic number, because the mean of its divisors is an integer number (597115755199).

Almost surely, 2^{1194231510397} is an apocalyptic number.

It is an amenable number.

1194231510397 is a deficient number, since it is larger than the sum of its proper divisors (1).

1194231510397 is an equidigital number, since it uses as much as digits as its factorization.

1194231510397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 204120, while the sum is 46.

The spelling of 1194231510397 in words is "one trillion, one hundred ninety-four billion, two hundred thirty-one million, five hundred ten thousand, three hundred ninety-seven".