123383837 has 2 divisors, whose sum is σ = 123383838. Its totient is φ = 123383836.

The previous prime is 123383723. The next prime is 123383839. The reversal of 123383837 is 738383321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112487236 + 10896601 = 10606^2 + 3301^2 .

It is a cyclic number.

It is not a de Polignac number, because 123383837 - 2⁸ = 123383581 is a prime.

Together with 123383839, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123383837.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123383839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61691918 + 61691919.

It is an arithmetic number, because the mean of its divisors is an integer number (61691919).

Almost surely, 2^123383837 is an apocalyptic number.

It is an amenable number.

123383837 is a deficient number, since it is larger than the sum of its proper divisors (1).

123383837 is an equidigital number, since it uses as much as digits as its factorization.

123383837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 38.

The square root of 123383837 is about 11107.8277354305. The cubic root of 123383837 is about 497.8357616610.

The spelling of 123383837 in words is "one hundred twenty-three million, three hundred eighty-three thousand, eight hundred thirty-seven".