123241320 has 48 divisors (see below), whose sum is σ = 400535460. Its totient is φ = 32864256.

The previous prime is 123241309. The next prime is 123241331. The reversal of 123241320 is 23142321.

123241320 is a `hidden beast` number, since 1 + 232 + 413 + 20 = 666.

It is an interprime number because it is at equal distance from previous prime (123241309) and next prime (123241331).

It can be written as a sum of positive squares in 2 ways, for example, as 113167044 + 10074276 = 10638^2 + 3174^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 123241293 and 123241302.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 170809 + ... + 171528.

Almost surely, 2^123241320 is an apocalyptic number.

123241320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123241320 is an abundant number, since it is smaller than the sum of its proper divisors (277294140).

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

123241320 is a wasteful number, since it uses less digits than its factorization.

123241320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342354 (or 342347 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 123241320 is about 11101.4107211651. The cubic root of 123241320 is about 497.6440093863.

Adding to 123241320 its reverse (23142321), we get a palindrome (146383641).

The spelling of 123241320 in words is "one hundred twenty-three million, two hundred forty-one thousand, three hundred twenty".