201442311101 has 4 divisors (see below), whose sum is σ = 201448901952. Its totient is φ = 201435720252.

The previous prime is 201442311097. The next prime is 201442311131. The reversal of 201442311101 is 101113244102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 201442311101 - 2² = 201442311097 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 (201442311131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3249365 + ... + 3310778.

It is an arithmetic number, because the mean of its divisors is an integer number (50362225488).

Almost surely, 2^201442311101 is an apocalyptic number.

It is an amenable number.

201442311101 is a deficient number, since it is larger than the sum of its proper divisors (6590851).

201442311101 is an equidigital number, since it uses as much as digits as its factorization.

201442311101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6590850.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 201442311101 its reverse (101113244102), we get a palindrome (302555555203).

The spelling of 201442311101 in words is "two hundred one billion, four hundred forty-two million, three hundred eleven thousand, one hundred one".