201230111231101 has 4 divisors (see below), whose sum is σ = 201235677644704. Its totient is φ = 201224544817500.

The previous prime is 201230111231089. The next prime is 201230111231117. The reversal of 201230111231101 is 101132111032102.

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 201230111231101 - 2¹⁹ = 201230110706813 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 (201230111234101) 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, 2783152575 + ... + 2783224876.

It is an arithmetic number, because the mean of its divisors is an integer number (50308919411176).

Almost surely, 2^{201230111231101} is an apocalyptic number.

It is an amenable number.

201230111231101 is a deficient number, since it is larger than the sum of its proper divisors (5566413603).

201230111231101 is an equidigital number, since it uses as much as digits as its factorization.

201230111231101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5566413602.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 201230111231101 its reverse (101132111032102), we get a palindrome (302362222263203).

The spelling of 201230111231101 in words is "two hundred one trillion, two hundred thirty billion, one hundred eleven million, two hundred thirty-one thousand, one hundred one".