201101130231 has 4 divisors (see below), whose sum is σ = 268134840312. Its totient is φ = 134067420152.

The previous prime is 201101130227. The next prime is 201101130259. The reversal of 201101130231 is 132031101102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 201101130231 - 2² = 201101130227 is a prime.

It is a super-2 number, since 2×201101130231² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 201101130231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201101130221) 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, 33516855036 + ... + 33516855041.

It is an arithmetic number, because the mean of its divisors is an integer number (67033710078).

Almost surely, 2^201101130231 is an apocalyptic number.

201101130231 is a deficient number, since it is larger than the sum of its proper divisors (67033710081).

201101130231 is an equidigital number, since it uses as much as digits as its factorization.

201101130231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67033710080.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 201101130231 its reverse (132031101102), we get a palindrome (333132231333).

The spelling of 201101130231 in words is "two hundred one billion, one hundred one million, one hundred thirty thousand, two hundred thirty-one".