12444121012432 has 20 divisors (see below), whose sum is σ = 24110979467076. Its totient is φ = 6221932762880.

The previous prime is 12444121012423. The next prime is 12444121012441. The reversal of 12444121012432 is 23421012144421.

12444121012432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12444121012423) and next prime (12444121012441).

It can be written as a sum of positive squares in 2 ways, for example, as 7818197578816 + 4625923433616 = 2796104^2 + 2150796^2 .

It is a super-2 number, since 2×12444121012432² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12444121012394 and 12444121012403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7177819 + ... + 8741242.

Almost surely, 2^{12444121012432} is an apocalyptic number.

It is an amenable number.

12444121012432 is a deficient number, since it is larger than the sum of its proper divisors (11666858454644).

12444121012432 is a wasteful number, since it uses less digits than its factorization.

12444121012432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15967926 (or 15967920 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 31.

Adding to 12444121012432 its reverse (23421012144421), we get a palindrome (35865133156853).

The spelling of 12444121012432 in words is "twelve trillion, four hundred forty-four billion, one hundred twenty-one million, twelve thousand, four hundred thirty-two".