201111130031 has 8 divisors (see below), whose sum is σ = 233609181984. Its totient is φ = 169555050720.

The previous prime is 201111130021. The next prime is 201111130127. The reversal of 201111130031 is 130031111102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201111130031 - 2²² = 201106935727 is a prime.

It is a super-2 number, since 2×201111130031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201111129988 and 201111130015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201111130021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235492700 + ... + 235493553.

It is an arithmetic number, because the mean of its divisors is an integer number (29201147748).

Almost surely, 2^201111130031 is an apocalyptic number.

201111130031 is a deficient number, since it is larger than the sum of its proper divisors (32498051953).

201111130031 is an equidigital number, since it uses as much as digits as its factorization.

201111130031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470986321.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 201111130031 its reverse (130031111102), we get a palindrome (331142241133).

The spelling of 201111130031 in words is "two hundred one billion, one hundred eleven million, one hundred thirty thousand, thirty-one".