213201102402 has 64 divisors (see below), whose sum is σ = 481016332800. Its totient is φ = 69982347600.

The previous prime is 213201102397. The next prime is 213201102479. The reversal of 213201102402 is 204201102312.

It is a happy number.

213201102402 is a `hidden beast` number, since 213 + 201 + 10 + 240 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12795777 + ... + 12812427.

It is an arithmetic number, because the mean of its divisors is an integer number (7515880200).

Almost surely, 2^213201102402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213201102402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240508166400).

213201102402 is an abundant number, since it is smaller than the sum of its proper divisors (267815230398).

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

213201102402 is a wasteful number, since it uses less digits than its factorization.

213201102402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20268 (or 20262 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 213201102402 its reverse (204201102312), we get a palindrome (417402204714).

The spelling of 213201102402 in words is "two hundred thirteen billion, two hundred one million, one hundred two thousand, four hundred two".