123010939 has 2 divisors, whose sum is σ = 123010940. Its totient is φ = 123010938.

The previous prime is 123010889. The next prime is 123010949. The reversal of 123010939 is 939010321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123010939 - 2¹¹ = 123008891 is a prime.

It is a super-2 number, since 2×123010939² = 30263382227323442, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (123010949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61505469 + 61505470.

It is an arithmetic number, because the mean of its divisors is an integer number (61505470).

Almost surely, 2^123010939 is an apocalyptic number.

123010939 is a deficient number, since it is larger than the sum of its proper divisors (1).

123010939 is an equidigital number, since it uses as much as digits as its factorization.

123010939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458, while the sum is 28.

The square root of 123010939 is about 11091.0296636516. The cubic root of 123010939 is about 497.3337259043. Note that the first 3 decimals are identical.

The spelling of 123010939 in words is "one hundred twenty-three million, ten thousand, nine hundred thirty-nine".