402111424121 has 8 divisors (see below), whose sum is σ = 443595852000. Its totient is φ = 361448470240.

The previous prime is 402111424109. The next prime is 402111424139. The reversal of 402111424121 is 121424111204.

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

It is a de Polignac number, because none of the positive numbers 2^k-402111424121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402111424171) 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, 205367471 + ... + 205369428.

It is an arithmetic number, because the mean of its divisors is an integer number (55449481500).

Almost surely, 2^402111424121 is an apocalyptic number.

It is an amenable number.

402111424121 is a deficient number, since it is larger than the sum of its proper divisors (41484427879).

402111424121 is a wasteful number, since it uses less digits than its factorization.

402111424121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410736999.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 402111424121 its reverse (121424111204), we get a palindrome (523535535325).

The spelling of 402111424121 in words is "four hundred two billion, one hundred eleven million, four hundred twenty-four thousand, one hundred twenty-one".