201132243240402 has 32 divisors (see below), whose sum is σ = 425929856673600. Its totient is φ = 63099903702528.

The previous prime is 201132243240349. The next prime is 201132243240451. The reversal of 201132243240402 is 204042342231102.

It is a self number, because there is not a number n which added to its sum of digits gives 201132243240402.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9679974 + ... + 22270302.

It is an arithmetic number, because the mean of its divisors is an integer number (13310308021050).

Almost surely, 2^{201132243240402} is an apocalyptic number.

201132243240402 is an abundant number, since it is smaller than the sum of its proper divisors (224797613433198).

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

201132243240402 is a wasteful number, since it uses less digits than its factorization.

201132243240402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12746970.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 201132243240402 its reverse (204042342231102), we get a palindrome (405174585471504).

The spelling of 201132243240402 in words is "two hundred one trillion, one hundred thirty-two billion, two hundred forty-three million, two hundred forty thousand, four hundred two".