409911123 has 16 divisors (see below), whose sum is σ = 594341280. Its totient is φ = 250246656.

The previous prime is 409911121. The next prime is 409911137. The reversal of 409911123 is 321119904.

It is not a de Polignac number, because 409911123 - 2¹ = 409911121 is a prime.

It is a super-2 number, since 2×409911123² = 336054257518242258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (409911121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106728 + ... + 110501.

It is an arithmetic number, because the mean of its divisors is an integer number (37146330).

Almost surely, 2^409911123 is an apocalyptic number.

409911123 is a deficient number, since it is larger than the sum of its proper divisors (184430157).

409911123 is a wasteful number, since it uses less digits than its factorization.

409911123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217286.

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 409911123 is about 20246.2619512837. The cubic root of 409911123 is about 742.8422003000.

The spelling of 409911123 in words is "four hundred nine million, nine hundred eleven thousand, one hundred twenty-three".