12121241432 has 16 divisors (see below), whose sum is σ = 22734432000. Its totient is φ = 6058726240.

The previous prime is 12121241423. The next prime is 12121241441. The reversal of 12121241432 is 23414212121.

It is an interprime number because it is at equal distance from previous prime (12121241423) and next prime (12121241441).

It is a junction number, because it is equal to n+sod(n) for n = 12121241398 and 12121241407.

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, 209432 + ... + 260967.

It is an arithmetic number, because the mean of its divisors is an integer number (1420902000).

Almost surely, 2^12121241432 is an apocalyptic number.

It is an amenable number.

12121241432 is a deficient number, since it is larger than the sum of its proper divisors (10613190568).

12121241432 is a wasteful number, since it uses less digits than its factorization.

12121241432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473626 (or 473622 counting only the distinct ones).

The product of its digits is 768, while the sum is 23.

Adding to 12121241432 its reverse (23414212121), we get a palindrome (35535453553).

The spelling of 12121241432 in words is "twelve billion, one hundred twenty-one million, two hundred forty-one thousand, four hundred thirty-two".