12332320040 has 32 divisors (see below), whose sum is σ = 28033787880. Its totient is φ = 4882071552.

The previous prime is 12332320019. The next prime is 12332320073. The reversal of 12332320040 is 4002323321.

It can be written as a sum of positive squares in 4 ways, for example, as 9025380004 + 3306940036 = 95002^2 + 57506^2 .

It is a super-2 number, since 2×12332320040² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 12332319994 and 12332320021.

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, 1585337 + ... + 1593096.

Almost surely, 2^12332320040 is an apocalyptic number.

12332320040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12332320040 is an abundant number, since it is smaller than the sum of its proper divisors (15701467840).

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

12332320040 is a wasteful number, since it uses less digits than its factorization.

12332320040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3178541 (or 3178537 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 12332320040 its reverse (4002323321), we get a palindrome (16334643361).

The spelling of 12332320040 in words is "twelve billion, three hundred thirty-two million, three hundred twenty thousand, forty".