12401355504342 has 128 divisors (see below), whose sum is σ = 29629248380928. Its totient is φ = 3383368243200.

The previous prime is 12401355504287. The next prime is 12401355504359. The reversal of 12401355504342 is 24340555310421.

It is a self number, because there is not a number n which added to its sum of digits gives 12401355504342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1517723917 + ... + 1517732087.

It is an arithmetic number, because the mean of its divisors is an integer number (231478502976).

Almost surely, 2^{12401355504342} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12401355504342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14814624190464).

12401355504342 is an abundant number, since it is smaller than the sum of its proper divisors (17227892876586).

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

12401355504342 is a wasteful number, since it uses less digits than its factorization.

12401355504342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10714.

The product of its (nonzero) digits is 288000, while the sum is 39.

The spelling of 12401355504342 in words is "twelve trillion, four hundred one billion, three hundred fifty-five million, five hundred four thousand, three hundred forty-two".