40300123 has 2 divisors, whose sum is σ = 40300124. Its totient is φ = 40300122.

The previous prime is 40300109. The next prime is 40300129. The reversal of 40300123 is 32100304.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40300123 - 2²¹ = 38202971 is a prime.

It is not a weakly prime, because it can be changed into another prime (40300129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20150061 + 20150062.

It is an arithmetic number, because the mean of its divisors is an integer number (20150062).

Almost surely, 2^40300123 is an apocalyptic number.

40300123 is a deficient number, since it is larger than the sum of its proper divisors (1).

40300123 is an equidigital number, since it uses as much as digits as its factorization.

40300123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 40300123 is about 6348.2377869768. The cubic root of 40300123 is about 342.8483975035.

Adding to 40300123 its reverse (32100304), we get a palindrome (72400427).

The spelling of 40300123 in words is "forty million, three hundred thousand, one hundred twenty-three".