1232322142440 has 64 divisors (see below), whose sum is σ = 3697939915200. Its totient is φ = 328532705792.

The previous prime is 1232322142439. The next prime is 1232322142477. The reversal of 1232322142440 is 442412232321.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1232322142398 and 1232322142407.

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, 893805 + ... + 1806524.

It is an arithmetic number, because the mean of its divisors is an integer number (57780311175).

Almost surely, 2^{1232322142440} is an apocalyptic number.

1232322142440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1232322142440 is an abundant number, since it is smaller than the sum of its proper divisors (2465617772760).

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

1232322142440 is a wasteful number, since it uses less digits than its factorization.

1232322142440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2704146 (or 2704142 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 1232322142440 its reverse (442412232321), we get a palindrome (1674734374761).

The spelling of 1232322142440 in words is "one trillion, two hundred thirty-two billion, three hundred twenty-two million, one hundred forty-two thousand, four hundred forty".