1233117397 has 2 divisors, whose sum is σ = 1233117398. Its totient is φ = 1233117396.

The previous prime is 1233117311. The next prime is 1233117449. The reversal of 1233117397 is 7937113321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1055535121 + 177582276 = 32489^2 + 13326^2 .

It is an emirp because it is prime and its reverse (7937113321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1233117397 - 2²³ = 1224728789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1233117307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616558698 + 616558699.

It is an arithmetic number, because the mean of its divisors is an integer number (616558699).

Almost surely, 2^1233117397 is an apocalyptic number.

It is an amenable number.

1233117397 is a deficient number, since it is larger than the sum of its proper divisors (1).

1233117397 is an equidigital number, since it uses as much as digits as its factorization.

1233117397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23814, while the sum is 37.

The square root of 1233117397 is about 35115.7713428027. The cubic root of 1233117397 is about 1072.3456843158.

The spelling of 1233117397 in words is "one billion, two hundred thirty-three million, one hundred seventeen thousand, three hundred ninety-seven".