Search a number
-
+
120311200131 = 3149269152573
BaseRepresentation
bin111000000001100011…
…0110011100110000011
3102111112200202012211020
41300003012303212003
53432344131401011
6131134210320523
711456265220263
oct1600306634603
9374480665736
10120311200131
1147029599411
121b397b89143
13b464807065
145b747d37a3
1531e2478006
hex1c031b3983

120311200131 has 8 divisors (see below), whose sum is σ = 161491544400. Its totient is φ = 79669161312.

The previous prime is 120311200081. The next prime is 120311200159. The reversal of 120311200131 is 131002113021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 120311200131 - 26 = 120311200067 is a prime.

It is a super-2 number, since 2×1203112001312 (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 120311200131.

It is not an unprimeable number, because it can be changed into a prime (120311200171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134575840 + ... + 134576733.

It is an arithmetic number, because the mean of its divisors is an integer number (20186443050).

Almost surely, 2120311200131 is an apocalyptic number.

120311200131 is a deficient number, since it is larger than the sum of its proper divisors (41180344269).

120311200131 is a wasteful number, since it uses less digits than its factorization.

120311200131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269152725.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 120311200131 its reverse (131002113021), we get a palindrome (251313313152).

The spelling of 120311200131 in words is "one hundred twenty billion, three hundred eleven million, two hundred thousand, one hundred thirty-one".

Divisors: 1 3 149 447 269152573 807457719 40103733377 120311200131