Search a number
-
+
110002121231 = 470323389777
BaseRepresentation
bin110011001110010100…
…0110010101000001111
3101111221020101202011012
41212130220302220033
53300241020334411
6122311223115435
710642645413542
oct1463450625017
9344836352135
10110002121231
11427193698a2
121939b5a2b7b
13a4b0a90582
1454775b6859
152cdc3b618b
hex199ca32a0f

110002121231 has 4 divisors (see below), whose sum is σ = 110025515712. Its totient is φ = 109978726752.

The previous prime is 110002121209. The next prime is 110002121263. The reversal of 110002121231 is 132121200011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132121200011 = 196953747369.

It is a cyclic number.

It is not a de Polignac number, because 110002121231 - 218 = 110001859087 is a prime.

It is a super-2 number, since 2×1100021212312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110002121291) 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, 11690186 + ... + 11699591.

It is an arithmetic number, because the mean of its divisors is an integer number (27506378928).

Almost surely, 2110002121231 is an apocalyptic number.

110002121231 is a deficient number, since it is larger than the sum of its proper divisors (23394481).

110002121231 is an equidigital number, since it uses as much as digits as its factorization.

110002121231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23394480.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 110002121231 its reverse (132121200011), we get a palindrome (242123321242).

The spelling of 110002121231 in words is "one hundred ten billion, two million, one hundred twenty-one thousand, two hundred thirty-one".

Divisors: 1 4703 23389777 110002121231