Search a number
-
+
100031102011 = 113118843701
BaseRepresentation
bin101110100101001010…
…0010111110000111011
3100120012100011111012001
41131022110113300323
53114330430231021
6113541553401431
710140602223631
oct1351224276073
9316170144161
10100031102011
1139471a49545
1217478269277
1395820ac1b9
144bad239351
152906d30091
hex174a517c3b

100031102011 has 4 divisors (see below), whose sum is σ = 100039957024. Its totient is φ = 100022247000.

The previous prime is 100031101969. The next prime is 100031102021. The reversal of 100031102011 is 110201130001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110201130001 = 243469452629.

It is a cyclic number.

It is not a de Polignac number, because 100031102011 - 211 = 100031099963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100031102021) 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, 4410540 + ... + 4433161.

It is an arithmetic number, because the mean of its divisors is an integer number (25009989256).

Almost surely, 2100031102011 is an apocalyptic number.

100031102011 is a deficient number, since it is larger than the sum of its proper divisors (8855013).

100031102011 is an equidigital number, since it uses as much as digits as its factorization.

100031102011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8855012.

The product of its (nonzero) digits is 6, while the sum is 10.

Adding to 100031102011 its reverse (110201130001), we get a palindrome (210232232012).

The spelling of 100031102011 in words is "one hundred billion, thirty-one million, one hundred two thousand, eleven".

Divisors: 1 11311 8843701 100031102011