402144332101 has 8 divisors (see below), whose sum is σ = 405778325400. Its totient is φ = 398522806272.

The previous prime is 402144332069. The next prime is 402144332113. The reversal of 402144332101 is 101233441204.

It can be written as a sum of positive squares in 4 ways, for example, as 14919401025 + 387224931076 = 122145^2 + 622274^2 .

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 402144332101 - 2⁵ = 402144332069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402144332171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3052060 + ... + 3181093.

It is an arithmetic number, because the mean of its divisors is an integer number (50722290675).

Almost surely, 2^402144332101 is an apocalyptic number.

It is an amenable number.

402144332101 is a deficient number, since it is larger than the sum of its proper divisors (3633993299).

402144332101 is a wasteful number, since it uses less digits than its factorization.

402144332101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6233735.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 402144332101 its reverse (101233441204), we get a palindrome (503377773305).

The spelling of 402144332101 in words is "four hundred two billion, one hundred forty-four million, three hundred thirty-two thousand, one hundred one".