123811430 has 16 divisors (see below), whose sum is σ = 224018784. Its totient is φ = 49267200.

The previous prime is 123811417. The next prime is 123811447. The reversal of 123811430 is 34118321.

It is a junction number, because it is equal to n+sod(n) for n = 123811396 and 123811405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30146 + ... + 34005.

It is an arithmetic number, because the mean of its divisors is an integer number (14001174).

Almost surely, 2^123811430 is an apocalyptic number.

123811430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123811430 is a deficient number, since it is larger than the sum of its proper divisors (100207354).

123811430 is a wasteful number, since it uses less digits than its factorization.

123811430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64351.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 123811430 is about 11127.0584612466. The cubic root of 123811430 is about 498.4101903683.

Adding to 123811430 its reverse (34118321), we get a palindrome (157929751).

The spelling of 123811430 in words is "one hundred twenty-three million, eight hundred eleven thousand, four hundred thirty".