12401401144 has 32 divisors (see below), whose sum is σ = 25438425840. Its totient is φ = 5621017600.

The previous prime is 12401401141. The next prime is 12401401151. The reversal of 12401401144 is 44110410421.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12401401141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168547 + ... + 230674.

Almost surely, 2^12401401144 is an apocalyptic number.

It is an amenable number.

12401401144 is an abundant number, since it is smaller than the sum of its proper divisors (13037024696).

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

12401401144 is a wasteful number, since it uses less digits than its factorization.

12401401144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399591 (or 399587 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 12401401144 its reverse (44110410421), we get a palindrome (56511811565).

The spelling of 12401401144 in words is "twelve billion, four hundred one million, four hundred one thousand, one hundred forty-four".