101090123 has 2 divisors, whose sum is σ = 101090124. Its totient is φ = 101090122.

The previous prime is 101090111. The next prime is 101090131. The reversal of 101090123 is 321090101.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 101090123 - 2⁸ = 101089867 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (101090153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50545061 + 50545062.

It is an arithmetic number, because the mean of its divisors is an integer number (50545062).

Almost surely, 2^101090123 is an apocalyptic number.

101090123 is a deficient number, since it is larger than the sum of its proper divisors (1).

101090123 is an equidigital number, since it uses as much as digits as its factorization.

101090123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 101090123 is about 10054.3584081730. The cubic root of 101090123 is about 465.8394256632.

The spelling of 101090123 in words is "one hundred one million, ninety thousand, one hundred twenty-three".