122403923 has 2 divisors, whose sum is σ = 122403924. Its totient is φ = 122403922.

The previous prime is 122403913. The next prime is 122404013. The reversal of 122403923 is 329304221.

It is a weak prime.

It is an emirp because it is prime and its reverse (329304221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122403923 - 2¹⁸ = 122141779 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 122403892 and 122403901.

It is not a weakly prime, because it can be changed into another prime (122403913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61201961 + 61201962.

It is an arithmetic number, because the mean of its divisors is an integer number (61201962).

Almost surely, 2^122403923 is an apocalyptic number.

122403923 is a deficient number, since it is larger than the sum of its proper divisors (1).

122403923 is an equidigital number, since it uses as much as digits as its factorization.

122403923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 122403923 is about 11063.6306427863. The cubic root of 122403923 is about 496.5143205453.

The spelling of 122403923 in words is "one hundred twenty-two million, four hundred three thousand, nine hundred twenty-three".