123400230 has 16 divisors (see below), whose sum is σ = 296160624. Its totient is φ = 32906720.

The previous prime is 123400213. The next prime is 123400247. The reversal of 123400230 is 32004321.

It is an interprime number because it is at equal distance from previous prime (123400213) and next prime (123400247).

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 2056641 + ... + 2056700.

It is an arithmetic number, because the mean of its divisors is an integer number (18510039).

Almost surely, 2^123400230 is an apocalyptic number.

123400230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123400230 is an abundant number, since it is smaller than the sum of its proper divisors (172760394).

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

123400230 is a wasteful number, since it uses less digits than its factorization.

123400230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4113351.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 123400230 is about 11108.5656139756. The cubic root of 123400230 is about 497.8578084716.

Adding to 123400230 its reverse (32004321), we get a palindrome (155404551).

The spelling of 123400230 in words is "one hundred twenty-three million, four hundred thousand, two hundred thirty".