123411530 has 48 divisors (see below), whose sum is σ = 252662760. Its totient is φ = 43317120.

The previous prime is 123411529. The next prime is 123411581. The reversal of 123411530 is 35114321.

It can be written as a sum of positive squares in 4 ways, for example, as 120275089 + 3136441 = 10967^2 + 1771^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33332 + ... + 36848.

Almost surely, 2^123411530 is an apocalyptic number.

123411530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123411530 is an abundant number, since it is smaller than the sum of its proper divisors (129251230).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123411530 is a wasteful number, since it uses less digits than its factorization.

123411530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3575 (or 3564 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 123411530 is about 11109.0742188537. The cubic root of 123411530 is about 497.8730046116.

Adding to 123411530 its reverse (35114321), we get a palindrome (158525851).

The spelling of 123411530 in words is "one hundred twenty-three million, four hundred eleven thousand, five hundred thirty".