Search a number
-
+
120023313131 = 951112619421
BaseRepresentation
bin110111111000111110…
…0100110101011101011
3102110210122001001002202
41233301330212223223
53431301432010011
6131045444050415
711446201220501
oct1576174465353
9373718031082
10120023313131
11469a1038677
121b317693a0b
13b419c8a817
145b48494671
1531c705d23b
hex1bf1f26aeb

120023313131 has 4 divisors (see below), whose sum is σ = 120035942064. Its totient is φ = 120010684200.

The previous prime is 120023313127. The next prime is 120023313169. The reversal of 120023313131 is 131313320021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131313320021 = 1310101024617.

It is a cyclic number.

It is not a de Polignac number, because 120023313131 - 22 = 120023313127 is a prime.

It is a super-2 number, since 2×1200233131312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120023313931) 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, 6300200 + ... + 6319221.

It is an arithmetic number, because the mean of its divisors is an integer number (30008985516).

Almost surely, 2120023313131 is an apocalyptic number.

120023313131 is a deficient number, since it is larger than the sum of its proper divisors (12628933).

120023313131 is an equidigital number, since it uses as much as digits as its factorization.

120023313131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12628932.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 120023313131 its reverse (131313320021), we get a palindrome (251336633152).

The spelling of 120023313131 in words is "one hundred twenty billion, twenty-three million, three hundred thirteen thousand, one hundred thirty-one".

Divisors: 1 9511 12619421 120023313131