12423203040 has 96 divisors (see below), whose sum is σ = 39203450496. Its totient is φ = 3306897920.

The previous prime is 12423203011. The next prime is 12423203069. The reversal of 12423203040 is 4030232421.

It is an interprime number because it is at equal distance from previous prime (12423203011) and next prime (12423203069).

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 12423202998 and 12423203016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 247255 + ... + 293225.

It is an arithmetic number, because the mean of its divisors is an integer number (408369276).

Almost surely, 2^12423203040 is an apocalyptic number.

12423203040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12423203040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19601725248).

12423203040 is an abundant number, since it is smaller than the sum of its proper divisors (26780247456).

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

12423203040 is a wasteful number, since it uses less digits than its factorization.

12423203040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46552 (or 46544 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 12423203040 its reverse (4030232421), we get a palindrome (16453435461).

The spelling of 12423203040 in words is "twelve billion, four hundred twenty-three million, two hundred three thousand, forty".