12402321402 has 32 divisors (see below), whose sum is σ = 26126784000. Its totient is φ = 3914027568.

The previous prime is 12402321401. The next prime is 12402321403. The reversal of 12402321402 is 20412320421.

It is an interprime number because it is at equal distance from previous prime (12402321401) and next prime (12402321403).

It is not an unprimeable number, because it can be changed into a prime (12402321401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149349 + ... + 217047.

It is an arithmetic number, because the mean of its divisors is an integer number (816462000).

Almost surely, 2^12402321402 is an apocalyptic number.

12402321402 is an abundant number, since it is smaller than the sum of its proper divisors (13724462598).

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

12402321402 is a wasteful number, since it uses less digits than its factorization.

12402321402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69330.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 12402321402 its reverse (20412320421), we get a palindrome (32814641823).

The spelling of 12402321402 in words is "twelve billion, four hundred two million, three hundred twenty-one thousand, four hundred two".