12401520143421 has 8 divisors (see below), whose sum is σ = 16535747217600. Its totient is φ = 8267486582432.

The previous prime is 12401520143407. The next prime is 12401520143431. The reversal of 12401520143421 is 12434102510421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12401520143421 - 2²⁶ = 12401453034557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12401520143401) 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, 48228696 + ... + 48485153.

It is an arithmetic number, because the mean of its divisors is an integer number (2066968402200).

Almost surely, 2^{12401520143421} is an apocalyptic number.

It is an amenable number.

12401520143421 is a deficient number, since it is larger than the sum of its proper divisors (4134227074179).

12401520143421 is an equidigital number, since it uses as much as digits as its factorization.

12401520143421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96756595.

The product of its (nonzero) digits is 7680, while the sum is 30.

Adding to 12401520143421 its reverse (12434102510421), we get a palindrome (24835622653842).

The spelling of 12401520143421 in words is "twelve trillion, four hundred one billion, five hundred twenty million, one hundred forty-three thousand, four hundred twenty-one".