2402242431421 has 8 divisors (see below), whose sum is σ = 2746801628480. Its totient is φ = 2058028661088.

The previous prime is 2402242431383. The next prime is 2402242431437. The reversal of 2402242431421 is 1241342422042.

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 2402242431421 - 2²⁷ = 2402108213693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2402242431481) 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, 86341776 + ... + 86369593.

It is an arithmetic number, because the mean of its divisors is an integer number (343350203560).

Almost surely, 2^{2402242431421} is an apocalyptic number.

It is an amenable number.

2402242431421 is a deficient number, since it is larger than the sum of its proper divisors (344559197059).

2402242431421 is a wasteful number, since it uses less digits than its factorization.

2402242431421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172713363.

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 2402242431421 its reverse (1241342422042), we get a palindrome (3643584853463).

The spelling of 2402242431421 in words is "two trillion, four hundred two billion, two hundred forty-two million, four hundred thirty-one thousand, four hundred twenty-one".