1232401220144 has 40 divisors (see below), whose sum is σ = 2442836675232. Its totient is φ = 602145367040.

The previous prime is 1232401220131. The next prime is 1232401220189. The reversal of 1232401220144 is 4410221042321.

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, 4671899 + ... + 4928634.

Almost surely, 2^{1232401220144} is an apocalyptic number.

It is an amenable number.

1232401220144 is a deficient number, since it is larger than the sum of its proper divisors (1210435455088).

1232401220144 is a wasteful number, since it uses less digits than its factorization.

1232401220144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9600725 (or 9600719 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 1232401220144 its reverse (4410221042321), we get a palindrome (5642622262465).

The spelling of 1232401220144 in words is "one trillion, two hundred thirty-two billion, four hundred one million, two hundred twenty thousand, one hundred forty-four".