Search a number
-
+
111031310101 = 691191606379
BaseRepresentation
bin110011101100111111…
…0110101011100010101
3101121120221222221212111
41213121332311130111
53304343003410401
6123001310151021
711010313364305
oct1473176653425
9347527887774
10111031310101
11430a7309708
12196281b2471
13a61607a47a
145534161605
152d4c910e51
hex19d9fb5715

111031310101 has 4 divisors (see below), whose sum is σ = 111032985600. Its totient is φ = 111029634604.

The previous prime is 111031310083. The next prime is 111031310119. The reversal of 111031310101 is 101013130111.

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, and also an emirpimes, since its reverse is a distinct semiprime: 101013130111 = 169009597679.

It is an interprime number because it is at equal distance from previous prime (111031310083) and next prime (111031310119).

It is a cyclic number.

It is not a de Polignac number, because 111031310101 - 211 = 111031308053 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 (111031310161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 734071 + ... + 872308.

It is an arithmetic number, because the mean of its divisors is an integer number (27758246400).

Almost surely, 2111031310101 is an apocalyptic number.

It is an amenable number.

111031310101 is a deficient number, since it is larger than the sum of its proper divisors (1675499).

111031310101 is an equidigital number, since it uses as much as digits as its factorization.

111031310101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1675498.

The product of its (nonzero) digits is 9, while the sum is 13.

Adding to 111031310101 its reverse (101013130111), we get a palindrome (212044440212).

The spelling of 111031310101 in words is "one hundred eleven billion, thirty-one million, three hundred ten thousand, one hundred one".

Divisors: 1 69119 1606379 111031310101