123193801 has 2 divisors, whose sum is σ = 123193802. Its totient is φ = 123193800.

The previous prime is 123193793. The next prime is 123193813. The reversal of 123193801 is 108391321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89321401 + 33872400 = 9451^2 + 5820^2 .

It is a cyclic number.

It is not a de Polignac number, because 123193801 - 2³ = 123193793 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123193801.

It is not a weakly prime, because it can be changed into another prime (123193001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61596900 + 61596901.

It is an arithmetic number, because the mean of its divisors is an integer number (61596901).

Almost surely, 2^123193801 is an apocalyptic number.

It is an amenable number.

123193801 is a deficient number, since it is larger than the sum of its proper divisors (1).

123193801 is an equidigital number, since it uses as much as digits as its factorization.

123193801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 123193801 is about 11099.2702913300. The cubic root of 123193801 is about 497.5800411608.

The spelling of 123193801 in words is "one hundred twenty-three million, one hundred ninety-three thousand, eight hundred one".