Search a number
-
+
120211012231 = 470572554583
BaseRepresentation
bin110111111110100100…
…0100111101010000111
3102111021201020010212021
41233331020213222013
53432143004342411
6131120231104011
711453640513262
oct1577510475207
9374251203767
10120211012231
1146a87a897a2
121b36a512007
13b449b28b8b
145b65393cd9
1531d8787a71
hex1bfd227a87

120211012231 has 4 divisors (see below), whose sum is σ = 120213613872. Its totient is φ = 120208410592.

The previous prime is 120211012223. The next prime is 120211012247. The reversal of 120211012231 is 132210112021.

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 120211012231 - 23 = 120211012223 is a prime.

It is a super-2 number, since 2×1202110122312 (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 (120211012331) 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, 1230235 + ... + 1324348.

It is an arithmetic number, because the mean of its divisors is an integer number (30053403468).

Almost surely, 2120211012231 is an apocalyptic number.

120211012231 is a deficient number, since it is larger than the sum of its proper divisors (2601641).

120211012231 is an equidigital number, since it uses as much as digits as its factorization.

120211012231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2601640.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 120211012231 its reverse (132210112021), we get a palindrome (252421124252).

The spelling of 120211012231 in words is "one hundred twenty billion, two hundred eleven million, twelve thousand, two hundred thirty-one".

Divisors: 1 47057 2554583 120211012231