Search a number
-
+
120302312213 = 432797728191
BaseRepresentation
bin111000000001010010…
…0111001101100010101
3102111112002000122220002
41300002210321230111
53432334342442323
6131133252021045
711456126532056
oct1600244715425
9374462018802
10120302312213
1147024578826
121b395001785
13b462a14735
145b7355c72d
1531e17be828
hex1c02939b15

120302312213 has 4 divisors (see below), whose sum is σ = 123100040448. Its totient is φ = 117504583980.

The previous prime is 120302312201. The next prime is 120302312237. The reversal of 120302312213 is 312213203021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 120302312213 - 218 = 120302050069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120302312243) 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, 1398864053 + ... + 1398864138.

It is an arithmetic number, because the mean of its divisors is an integer number (30775010112).

Almost surely, 2120302312213 is an apocalyptic number.

It is an amenable number.

120302312213 is a deficient number, since it is larger than the sum of its proper divisors (2797728235).

120302312213 is an equidigital number, since it uses as much as digits as its factorization.

120302312213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2797728234.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 120302312213 its reverse (312213203021), we get a palindrome (432515515234).

The spelling of 120302312213 in words is "one hundred twenty billion, three hundred two million, three hundred twelve thousand, two hundred thirteen".

Divisors: 1 43 2797728191 120302312213