123231450 has 48 divisors (see below), whose sum is σ = 306292896. Its totient is φ = 32788800.

The previous prime is 123231443. The next prime is 123231457. The reversal of 123231450 is 54132321.

It is an interprime number because it is at equal distance from previous prime (123231443) and next prime (123231457).

It is not an unprimeable number, because it can be changed into a prime (123231457) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 121144 + ... + 122156.

It is an arithmetic number, because the mean of its divisors is an integer number (6381102).

Almost surely, 2^123231450 is an apocalyptic number.

123231450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123231450 is an abundant number, since it is smaller than the sum of its proper divisors (183061446).

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

123231450 is a wasteful number, since it uses less digits than its factorization.

123231450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1839 (or 1834 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 123231450 is about 11100.9661741670. The cubic root of 123231450 is about 497.6307241302.

Adding to 123231450 its reverse (54132321), we get a palindrome (177363771).

The spelling of 123231450 in words is "one hundred twenty-three million, two hundred thirty-one thousand, four hundred fifty".