100690123 has 2 divisors, whose sum is σ = 100690124. Its totient is φ = 100690122.

The previous prime is 100690033. The next prime is 100690127. The reversal of 100690123 is 321096001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100690123 - 2²¹ = 98592971 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100690094 and 100690103.

It is not a weakly prime, because it can be changed into another prime (100690127) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50345061 + 50345062.

It is an arithmetic number, because the mean of its divisors is an integer number (50345062).

Almost surely, 2^100690123 is an apocalyptic number.

100690123 is a deficient number, since it is larger than the sum of its proper divisors (1).

100690123 is an equidigital number, since it uses as much as digits as its factorization.

100690123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 100690123 is about 10034.4468208267. The cubic root of 100690123 is about 465.2241921965.

The spelling of 100690123 in words is "one hundred million, six hundred ninety thousand, one hundred twenty-three".