Search a number
-
+
120310232131 = 4731161913297
BaseRepresentation
bin111000000001100001…
…1000111010001000011
3102111112121221000222101
41300003003013101003
53432343404412011
6131134133451231
711456254046155
oct1600303072103
9374477830871
10120310232131
1147028a98111
121b3977a0b17
13b46455858b
145b74620ad5
1531e23362c1
hex1c030c7443

120310232131 has 16 divisors (see below), whose sum is σ = 123473525760. Its totient is φ = 117173393280.

The previous prime is 120310232093. The next prime is 120310232153. The reversal of 120310232131 is 131232013021.

It is a cyclic number.

It is not a de Polignac number, because 120310232131 - 211 = 120310230083 is a prime.

It is a super-2 number, since 2×1203102321312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120310232099 and 120310232108.

It is not an unprimeable number, because it can be changed into a prime (120310236131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9041275 + ... + 9054571.

It is an arithmetic number, because the mean of its divisors is an integer number (7717095360).

Almost surely, 2120310232131 is an apocalyptic number.

120310232131 is a deficient number, since it is larger than the sum of its proper divisors (3163293629).

120310232131 is a wasteful number, since it uses less digits than its factorization.

120310232131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14274.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 120310232131 its reverse (131232013021), we get a palindrome (251542245152).

The spelling of 120310232131 in words is "one hundred twenty billion, three hundred ten million, two hundred thirty-two thousand, one hundred thirty-one".

Divisors: 1 47 311 619 13297 14617 29093 192509 624959 4135367 8230843 9047923 194362249 386849621 2559792173 120310232131