201442133401 has 2 divisors, whose sum is σ = 201442133402. Its totient is φ = 201442133400.

The previous prime is 201442133377. The next prime is 201442133429. The reversal of 201442133401 is 104331244102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 201421440000 + 20693401 = 448800^2 + 4549^2 .

It is a cyclic number.

It is not a de Polignac number, because 201442133401 - 2¹⁵ = 201442100633 is a prime.

It is not a weakly prime, because it can be changed into another prime (201442133701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100721066700 + 100721066701.

It is an arithmetic number, because the mean of its divisors is an integer number (100721066701).

Almost surely, 2^201442133401 is an apocalyptic number.

It is an amenable number.

201442133401 is a deficient number, since it is larger than the sum of its proper divisors (1).

201442133401 is an equidigital number, since it uses as much as digits as its factorization.

201442133401 is an evil number, because the sum of its binary digits is even.

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

Adding to 201442133401 its reverse (104331244102), we get a palindrome (305773377503).

The spelling of 201442133401 in words is "two hundred one billion, four hundred forty-two million, one hundred thirty-three thousand, four hundred one".