123442097 has 2 divisors, whose sum is σ = 123442098. Its totient is φ = 123442096.

The previous prime is 123442087. The next prime is 123442129. The reversal of 123442097 is 790244321.

It is an a-pointer prime, because the next prime (123442129) can be obtained adding 123442097 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65545216 + 57896881 = 8096^2 + 7609^2 .

It is an emirp because it is prime and its reverse (790244321) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123442097 is a prime.

It is equal to p_7026449 and since 123442097 and 7026449 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (123442087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61721048 + 61721049.

It is an arithmetic number, because the mean of its divisors is an integer number (61721049).

Almost surely, 2^123442097 is an apocalyptic number.

It is an amenable number.

123442097 is a deficient number, since it is larger than the sum of its proper divisors (1).

123442097 is an equidigital number, since it uses as much as digits as its factorization.

123442097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 123442097 is about 11110.4499008816. The cubic root of 123442097 is about 497.9141061949.

It can be divided in two parts, 12344 and 2097, that added together give a palindrome (14441).

The spelling of 123442097 in words is "one hundred twenty-three million, four hundred forty-two thousand, ninety-seven".