123010949 has 2 divisors, whose sum is σ = 123010950. Its totient is φ = 123010948.

The previous prime is 123010939. The next prime is 123010961. The reversal of 123010949 is 949010321.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67404100 + 55606849 = 8210^2 + 7457^2 .

It is a cyclic number.

It is not a de Polignac number, because 123010949 - 2²⁴ = 106233733 is a prime.

It is a Chen prime.

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

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123010939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61505474 + 61505475.

It is an arithmetic number, because the mean of its divisors is an integer number (61505475).

Almost surely, 2^123010949 is an apocalyptic number.

It is an amenable number.

123010949 is a deficient number, since it is larger than the sum of its proper divisors (1).

123010949 is an equidigital number, since it uses as much as digits as its factorization.

123010949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 123010949 is about 11091.0301144664. The cubic root of 123010949 is about 497.3337393810. Note that the first 3 decimals are identical.

The spelling of 123010949 in words is "one hundred twenty-three million, ten thousand, nine hundred forty-nine".